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(generated from captions) Yeah, yeah. Rather nice. Nice finish.

Very good, that's stunning. Is it? That's all moving, isn't it? I'll come up in a bit. Yeah. Stop there, to find a route to the summit. It took the original team two days taken our guys around five hours. Climbing in their footsteps, it's Awesome. Nice one. Excellent. I'm absolutely stunned. I can't believe you did it, started out this morning. given how miserable it was when you Well, we're pretty surprised too. Yeah, I know. really is. It's a privilege to be up here. It for Chris Bonnington and Co. We have to show respect has enabled us to reach this point. who made the first ascent, which but really there's not many places We've climbed all over the world that's for sure. that's as cool as this, Captions (c) SBS Australia 2011

This program is captioned live.

Coming up in World News Australia - breakdown in Brussels after

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new eurozone treaty. Russia accuses

the US of stirring anti-government

protests. Iran unveils the US spy

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And paying tribute to former DRAMATIC MUSIC, SHOUTING

An expedition is underway... get the condition of the bulkhead. We'll look inside there and the Japanese attack on Pearl Harbor, ..and it may rewrite the history of a day that forever lives in infamy. NEWSREEL: December 7, 1941, the United States of America and deliberately attacked. was suddenly This is the exact moment into World War II. when the United States was drawn just about everything You would think that we would know about this attack. We don't. attack on Pearl Harbor Most people think of the surprise raining down from the sky. as an aerial assault

of a Japanese submarine, But now the mysterious wreck missing for almost 70 years, just outside Pearl Harbor. has been found in the waters Could the attack have also come from below?

after analysing the data It's my conclusion prior to its sinking. that this sub fired its torpedoes where we have a crime scene. It's almost like a CSI situation, in the water. We have numerous torpedo tracks the secrets of the mystery sub Can forensic science unlock of the attack on Pearl Harbor? and reveal the true story Fire in the hole!

mystery, and somewhere is the truth. Pearl Harbor's wrapped in enigma and Oahu.

One of the Hawaiian Islands. A vacation paradise in the Pacific. Spectacular vistas, tropical beaches and vivid reminders of the past. early on December 7, 1941, For a few hours, became a living hell. this little piece of heaven The sky, that Sunday morning, of a fierce aerial assault: blazed in the crossfire more than 350 Japanese aircraft the American Pacific Fleet bombing and blasting berthed in Pearl Harbor. and structures on the shore. Dive-bombers strafing people, planes shook not only the entire harbour, The surprise attack but also an entire nation that suddenly found itself at war. lost their lives in the battle. Over 2400 Americans on just one ship, Almost half of them died the USS 'Arizona'. It remains under the sea, of a devastating day. a powerful symbol Today a monument is built on top of the wreck.

to the 1177 men, and pay their respects most of whom remain entombed inside the hull of the Arizona below, the side of my butt. The skin came off Don Stratton was on the 'Arizona', at incoming planes, directing anti-aircraft guns My hair was burned off. part of my ear. I lost part of my nose, both my legs were burnt. My back was burnt, but I don't talk about that much. It was just a hell of a day, about that. So that's all I've got to say

of the Japanese offensive But there was another part completely hidden from view. the Pearl Harbor attack Popular perception is that an aerial attack, was primarily It's the ultimate air raid. at the Battle of Pearl Harbor But a closer look a lot more to it than that. really reveals there's about the Japanese expectations It also tells us a lot to completely cripple that they really wanted the Pacific Fleet. Compelling evidence now suggests not only from above, but below. that Pearl Harbor was attacked aircraft carriers Hours before Japanese from a position north of Oahu, launched their planes approaching from the south. a secret weapon was already shortly after midnight, According to military records, slipped undetected five Japanese submarines of Pearl Harbor, to within just a few miles a technological marvel on its back: each one carrying

a two-man midget sub.

The five Type A midget submarines of the mother sub. were about a quarter of the length and packed with equipment, Just six feet wide for efficiency, not comfort. these miniature subs were designed A 600-horsepower electric motor swiftly underwater at 19 knots, propelled the midget subs American submarines of the day. twice as fast as many take the enemy by surprise, The midget subs could not only they could hit the enemy hard. the Naval Academy in Japan shows how. The bow of a midget sub on display at Long Lance torpedoes Just one of these modified in a towering battleship. could punch a hole submarines during World War II The Japanese built hundreds of midget the Pacific and Indian Oceans. and deployed them all across would be the midget sub's opening act The surprise attack on Pearl Harbor for the war that followed. Author Burl Burlingame their top-secret operation. has investigated to get in the harbour, The midget submarines were supposed to happen, lie low, wait for the attack torpedoes into the American ships, and then surface, fire their attacking them from the bottom But how well did the plan succeed? midget subs launched that morning We know that four of the five failed in their mission. One midget submarine was sunk It did not fire its torpedoes. was shelled by the USS 'Ward' Midget sub number 1 over an hour before the Japanese warplanes attacked. It remains where it sank, Midget sub number 2 entered Pearl Harbor, but after missing its target with both torpedoes, the sub was destroyed by a pair of American ships.

It was raised two weeks after the attack and buried as landfill. Two down, and another two would never make it even close to the harbour. Midget sub number 3 ran aground on the east side of Oahu, and its captain became the first Japanese prisoner of war. Neither of its torpedoes had been fired. It is now on display at the National Museum of the Pacific War, in Texas. The fourth midget sub turned up years later, several miles south of Pearl Harbor. in 1960, at Keehi Lagoon, Another midget submarine was found and it still had its torpedoes in it. That midget submarine was shipped back to Japan. It now stands outside the Naval Academy in Etajima. It's pretty clear that four of the submarines did not actually complete their mission. What about number 5, the last of the midget subs? The fifth was a mystery. Historians differed on what it could have done, or where it could've ended up.

We know that midget sub number 5 began its journey in Kure, Japan. Petty Officer Kichiji Dewa was aboard its mother sub the night number 5 launched into battle. Dewa recorded his thoughts in a secret diary. During the war, the Japanese were told that the fifth midget sub had scored a devastating kill. The Japanese midget submariners became the heroes of the attack, in Japan. They were given credit for sinking the USS 'Arizona'. Did midget sub number 5 sink the 'Arizona' or any other American battleship that day in Pearl Harbor? I think that that cat-and-mouse game is still going on, with historians trying to find out what happened to the fifth sub. Now, after almost 70 years, the mystery may be solved and the true story of the attack on Pearl Harbor (CHEERFUL POP MUSIC) (ELEVATOR CHIMES) (MECHANISM WHINES) (ELEVATOR DINGS) VOICEOVER: This summer, real flavour is hitting McDonald's in a big way, like our decadent new Choc Whirl Frappe, topped with cream and choc drizzle for an introductory price of just $2.95. Come in and try one now. Bunnings has everything you need If your family's coming over, we've got everything you need to make your home look great. Pack of 20 solar path lights,

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Euro reed fencing screen, $19.99. You can get it all ready for Christmas, with the lowest prices. Lowest prices are just the beginning. Terry Kerby is a submersible pilot who has been exploring the ocean floor around the Hawaiian Islands for years. The area just outside of Pearl Harbor is an underwater museum of World War II debris. We found wrecks of aeroplanes and vehicles and pier parts and lots of junk. During a routine test dive, three miles south of Pearl Harbor, Terry spotted something unusual. It was a long tube of steel, and to an expert eye it resembled part of a Japanese midget sub. Terry eventually found two more sections spread out across the ocean floor. But are all three pieces from the same submarine? And if so, is it the wreck of midget sub number 5, missing since December 7, 1941? NOVA has assembled a unique team of investigators to find out. They come from both sides of the battle: America and Japan. Leading the investigation is marine forensic historian, Parks Stephenson, a former US Navy officer and submariner. Today's the day. After months of study, we're actually going down to the wreck of the midget sub that we've identified as potentially the last of the missing Japanese midget subs

that participated in the attack on Pearl Harbor. MORSE BEEPS Joining Parks is Admiral Kazuo Ueda.

I was honoured that Admiral Ueda offered to come out here. He was the senior surviving midget submariner from the war. No one knows the whole context of the Japanese midget subs better than he. Admiral Ueda has his doubts about the midget sub. He doesn't think but one damaged and dumped by American forces later in the war. Historian Go Okumoto knows midget subs from the inside out.

He wrote a book on the midget submarines, he's probably the premier Japanese expert. Go wants to study the wreck before drawing any conclusions. The Japanese built hundreds of midget subs during the war. One of the few things we know about the midget submarines as a class of submarines is that the Japanese Navy was always tinkering with them. The five midget subs deployed at Pearl Harbor were early models and unlike any that followed. The team plans to dive over a thousand feet below the surface in two deep-sea research submersibles, the 'Pisces IV' and the 'Pisces V'. Admiral Ueda will dive in the 'Pisces IV'. Go joins Parks Stephenson in the 'Pisces V', with Terry Kerby at the controls. Just big enough for a three-person crew, to a depth of over a mile the submersibles can dive and stay down for up to 10 hours. Equipped with instruments to monitor the ocean and collect samples, the 'Pisces IV' and the 'Pisces V'

are state-of-the-art midget submarines. But they're tools of science, not weapons of war, entirely different from the Japanese midget subs of 1941. Even though Terry has been down here before, doesn't mean the sub is easy to find. After searching for over an hour, the crew sees some World War II wreckage. These are the wrecks of several amphibious assault vehicles, but nestled among them... ..what, at first glance, could be a torpedo, is actually the stern of a Japanese midget submarine.

The size and shape are unmistakable to historian Go Okumoto. To learn more, he and Parks want to examine the rudder, the moveable fin that steers the sub. The rudder design on the five subs sent to Pearl Harbor was never used again.

That's because it was a liability. After Pearl Harbor, the Japanese would change the rudder design to make the midget subs more manoeuvrable.

for a closer look. The 'Pisces V' moves in Though the stern is badly damaged, is still visible. the rudder on its back may be in place, One piece of the puzzle doesn't quite fit. but a cable dangling from the stern is completely out of place Go believes this cable of any Pearl Harbor midget sub. and not part

toward the second piece of the wreck, Terry Kerby steers the 'Pisces V' as the 'Pisces IV' follows. knew almost nothing Before the war, the American military about these midget subs.

most guarded secret weapon. They were the Japanese Navy's about these midget submarines. We simply didn't know at Pearl Harbor, And when they appeared they actually caused quite a stir. to be not only a military surprise The December 7th attack turned out but also a technological one. were developing midget subs, Other countries human-guided torpedoes - but they were mostly and often suicide weapons. crude, unreliable were more like real submarines, The Japanese versions but much more compact. to sort of miniaturise They were able and use batteries. their propulsion technology of its limited space. The midget sub made ingenious use Divided into seven compartments, inside a control room both pilot and captain operated the size of a closet,

and a radiotelegraph. crammed with switches, instruments These cleverly designed machines in a closely guarded plant, were constructed in three separate sections, almost the same way the mystery sub would be found, decades later. next to what appears to be Terry Kerby manoeuvres into position of a Japanese midget sub. 'Pisces IV', 'Pisces V'... for a pulley. Parks and Go are looking protected by anti-torpedo nets, The mouth of Pearl Harbor was attached to the bow. so the midget subs had net cutters to guide the net up and over the sub A cable was installed, with a pulley, so it wouldn't get caught. At first, they can't see it. Then... both pulley and cable were modified. After Pearl Harbor, According to historian Go Okumoto, this pulley looks like it belongs on a Pearl Harbor midget sub. Yet with each new clue They find a mysterious cable attached to the mid section, just like the one on the stern.

But there's still one more piece to examine. The sharp-edged net cutters attached to the bow of the five Pearl Harbor midget submarines Unlike any others that followed, they were shaped like a figure eight. it was assumed After the Pearl Harbor attack, getting through our nets, that midget submarines had trouble great big net cutters so they added from a Jules Verne novel. that looked like something The figure-eight net cutter is key to identifying midget sub number 5. move in on the bow. The 'Pisces' submersibles Admiral Ueda confirms the discovery. Go Okumoto agrees. for almost 70 years, Out of sight at the bottom of the sea puzzle has fallen into place. A giant piece of the Pearl Harbor can perhaps be answered. And now, the key question of the other midget subs We know that none

inside Pearl Harbor. successfully fired their torpedoes But unlike the other four, did midget sub number 5 fire its torpedoes into a battleship?

that shortly after midnight Japanese war records reveal on December 7, 1941, seven miles outside of Pearl Harbor midget sub number 5 surfaced on the back of its mother sub. As the mother sub was ready for action. the two-man crew of number 5 a final letter to his parents: Pilot Sadamu Kamita sent do not grieve, "Should anything happen to me, "for I have dedicated my life in service to His Imperial Majesty."

Commander Masaji Yokoyama Years earlier, on his naval academy notebook: had written four words and honesty." "Vigour, spirit, patience in the hours ahead. Both men would need these attributes Petty Officer Kichiji Dewa recalls

were highly qualified for the job. that Kamita and Yokoyama Dewa was the last person With that, the two submarines pulled apart.

for the mouth of Pearl Harbor. while number 5 headed straight But did it do any harm? is able to peer The camera on 'Pisces V' right inside the torpedo tubes. Both of them are empty. bow section of the midget submarine, We're at the business end of the the empty torpedo tubes. staring right down It's an amazing sight. succeeded in firing its torpedoes, But if midget sub number 5 did they find their target? some 12 hours after the attack, Around 10.40 p.m., received a message in Morse Code Petty Officer Dewa the Japanese characters 'kira' - a message that made no sense. made a mistake. Dewa thinks the exhausted crew 'Tora' begins with a dot, dot. MORSE BEEPS 'Kira' begins with a dash, dot. MORSE BEEPS All it takes is an extra second on the clicker to turn a dot into a dash. Tora was a Japanese code word. in our surprise attack." It meant "We have succeeded to the Japanese high command, The mother sub sent word was taken as fact. where the report of success the midget submariners In their absence, sort of in between human and god. BURL BURLINGAME: Which is posters of them. And they sold of World War II Japan. They were like the rock stars embraced the idea The Japanese media that these men for the nation, had sacrificed everything made a film about them. written about them. BURL BURLINGAME: They had books vast amounts of credit The midget submariners were given for the success of the attack. And for Petty Officer Dewa, of number 5, who had come to know the crew the message had a special meaning. appear to support that success. The two empty torpedo tubes But just because the tubes are empty were fired. doesn't mean the torpedoes Perhaps they were removed? cannot be found below. The answer to this question Definitely a Pearl Harbor sub, just really stand out. the empty torpedo tubes wants to discover Forensic historian Parks Stephenson those empty torpedo tubes mean. exactly what to microbial ecologist Lori Johnston, He sends all the information underwater. an expert in what happens to metals as melting into the sea. Think of the sub on the torpedo tubes Even though the encrustation looks like rust, it's not. Ordinary rust is a purely chemical reaction.

This is something entirely different, known as a "rusticle". A rusticle is a living organism. It's actually bacteria, micro-organisms that are naturally found in the environment. Also found on the wreck of the 'Titanic', rusticles feed on metal in salt water. This is an example of a rusticle.

It's full of little crevices and cracks and tunnels. You're not dealing with one type of bacteria,

you're dealing with multiple types of bacteria: a "consorm" or a consortium of bacteria. types of bacteria working together. Each different tunnel has different That's why they're so good at being able to break down steel. Any types of metal, any types of nutrients, they're able to incorporate that within the rusticle structure. midget sub number 5 soon after it sank. Once the sub has been in the water for a very short period of time, within weeks and months, encrustation has already started to form. So it's almost like cementing the torpedo within the tube. extremely dangerous to remove. That would make it

It would be taking your life in your own hands by removing an active, a live torpedo that had started to cement in the tube. Lori believes all the evidence points in a single direction. It's my conclusion after analysing the data If midget sub number 5 fired both of its powerful Long Lance torpedoes, what was the target?

This summer, with Telstra Pre-Paid, $79 goes a long, long way. Get an exclusive pre-paid smartphone from just $79 with Telstra. Just 40 feet lays the wreck of the USS 'Arizona', where over a thousand American servicemen lost their lives and where most of them still remain. Diver John Chatterton

and National Parks Service archaeologist Matt Russell will search for evidence of a torpedo hit on the hull of the 'Arizona'. DARK MUSIC It's a war grave. Only a select few are permitted to dive here, and even fewer are allowed to film what lies at rest beneath the waves. As Chatterton and Russell explore the wreck, the events of the day come alive. CHATTERTON: This is a stairway. On December 7, 1941, American sailors would have been running up these steps... ..grabbing onto these handrails and trying to save their ship. RUSSELL: This is the original wood planking 'Arizona' back here in the stern. that covered the main deck of This looks like scarring from shrapnel over here and over there. It could be battle damage from the December 7 attack. We know that the 'Arizona' was attacked by bombs from above, but some eyewitnesses say it was also torpedoed from below. Crew was doing that, they were cutting lines here and getting people across. Arnold Bauer was aboard the USS 'Vestal', a repair ship, moored alongside the 'Arizona'. So you are 100 per cent confident that the 'Arizona' received one or more torpedoes during the attack.

Yep, I saw the track. Okay, so you were standing here, at the quarterdeck. I went over on this side to see what was going to happen to this side. Why did you go running over here? Because I figured if a torpedo was going to hit here, On the morning of December 7, 1941, Don Stratton was defending the 'Arizona' from incoming fire, and he remembers a pair of torpedoes heading towards the ship. I swear, to this day, that two of them were headed right toward the 'Arizona' and the 'Vestal'. For those people who say definitely wasn't torpedoed, that the 'Arizona' what do you have to say to them? They weren't there. But you saw them. I saw them, for sure. But after hours of searching, Matt Russell and John Chatterton can't find any evidence of a torpedo hit. We've gone over virtually every inch of the port side of 'Arizona's bow. But what if that torpedo was a dud? Anti-submarine expert Tom Taylor has uncovered an obscure passage Commander of the Pacific Fleet. It describes an unexploded torpedo sighted inside Pearl Harbor, one that may have come from midget sub number 5. At the end of one of the paragraphs it states a recovered, unexploded torpedo

carried an explosive charge of 1000 pounds. We knew that the aerial torpedoes were only around 500 pounds. That could only be a submarine torpedo. The aerial torpedoes were less than half that charge. The fact that he reported that they recovered this torpedo indicates corroborating evidence that a midget submarine had penetrated Battleship Row and had fired upon it. We will never know if that torpedo was intended for the USS 'Arizona', but if it was a dud, that still leaves one more torpedo unaccounted for. On the morning of the attack, and the USS 'Oklahoma' the USS 'West Virginia' were close of the 'Arizona' on Battleship Row.

Two naval experts believe they have found a photograph of midget sub number 5 in action against at least one of them.

Recovered after the war, this picture was taken by a camera on a Japanese plane the morning of December 7. It's fuzzy and unclear, but some experts believe it's a midget sub firing a torpedo straight into Battleship Row. To this point... was roughly 1600 feet we have numerous torpedo tracks in the water. Naval intelligence officer John Rodgaard and forensic engineer Peter K Hsu have spent years analysing this single photograph.

What we see in this photo is the effects of the initial aerial torpedo strikes against Battleship Row. We can see the concussion waves radiating out from the ships that have been hit. We can see torpedo tracks in the water. We see an object in the water with a distinctive horizontal feature and a distinctive vertical feature. Both are features of a midget submarine. The vertical feature would be the sail, the horizontal feature, the hull. We can see behind it, plumes of water caused by a propeller.

Could those plumes of water be caused by a torpedo being dropped by an aeroplane? No, because a torpedo hitting the water has a distinctive splash. It's a forward movement. It's more of a fountain effect caused by a propeller. The propeller of midget sub number 5. Whenever a Japanese midget sub fires a torpedo, there's a sudden loss of balance. Which, in turn, rocks the sub up and down as the crew struggles to regain control. This creates a unique plume of water called a rooster tail, which occurs when the propeller But did the torpedo hit its target? The rooster tails in the photograph could offer a clue. It generates a surface disturbance. According to Hsu, an expert in fluid dynamics, one of these rooster tails may also be the result of the midget-sub torpedo hitting its mark. This kind of animation... Under John and Peter's guidance, NOVA has taken the team's original classified calculations and re-engineered them into revealing animation. When a torpedo blasts into a ship, it produces a shockwave powerful enough to lift a sub out of the sea, even at a distance.

TORPEDOES WAIL The shockwave created by an airborne torpedo isn't powerful enough to reach the midget sub. The area generated by the shockwave does not reach the submarine. Because a torpedo fired by a midget sub has a warhead almost twice the size as an airborne one, the shockwave it creates radiates much farther. And when that torpedo hits its target... The cavitation extends beyond the submarine and lifts it above the surface. But how does the animation compare with the original photograph? What we see in the animation is the effect of the explosion on both the submarine and the large rooster tail as we can see as a snapshot in time of the large plume behind the submarine in the photograph alongside the 'West Virginia', and the plume rising and the correlation is perfect. The 'West Virginia' took at least seven torpedo hits. The 'Oklahoma' was hit by up to nine torpedoes. While most were launched from planes, Rodgaard and Hsu believe that two of those torpedoes were fired by midget sub number 5. One striking the 'West Virginia', the other one appearing to move towards the 'Oklahoma'. This leaves us with conflicting conclusions. I saw the track. So you were standing here. If the accounts of some eyewitnesses and the Nimitz report are to be believed, one torpedo was fired but turned out to be a dud. If the photographic experts are to be believed, then two torpedoes were fired, hitting the 'West Virginia' and the 'Oklahoma'. Either way it appears likely that midget sub number 5 successfully fired its torpedoes inside Pearl Harbor. So after completing its mission, where did it go? We actively know, through documents and through primary source photographs, that there was a hunt for these submarines. The chances of one getting out, I think, is extremely narrow. During the attack, a US naval minesweeper reported both sighting and firing upon what appeared to be a midget submarine trying to escape the harbour. Where would the sub go? Okay, so, if we're Yokoyama here... as he's running out of options trying to escape... Parks Stephenson examines a Japanese map from one of the recovered midget subs. If I'm looking at this chart, and I seem to be running out of options, there's this area here which is open and, according to this Japanese legend over here on the side, the West Loch doesn't have a lot in it. Parks believes number 5 escaped to the relative isolation of the West Loch, at the time, a backwater fuelling area.

But what happened to the sub and its crew, Commander Masaji Yokoyama and Pilot Sadamu Kamita? During the investigation of the wreck, the team discovered what could be a frightening clue. About 10 feet of the sub appears to be missing. If you look at the edges of this torn steel here, it's bent outward. Whatever did the damage back here came from inside the sub. In order to keep Japan's secret weapon out of enemy hands the crew was instructed to escape if they could, but to destroy their submarine by igniting a scuttling charge lashed to the mid section. Did Yokoyama and Kamita follow these instructions? And if so, how? NOVA has recruited a team of experts to find out. Watch that pole! If the two men scuttled their sub on the surface,

they could have lit the fuse and possibly escaped with their lives. If the crew was submerged, then the crew is probably still sealed inside. This um... thin metal here is scale thickness to the thickness of the sub hull. Naval Engineer Roger Long has created a scale model of a midget submarine from an old scuba tank. Demolitions expert David Loring is in charge of the action. This is Naval Weapons Station Earle EOD demolition range, about 11,000 acres of bombs and bullets. We're going to test it on the surface, with this open, as if they set off the scuttling charge in the sub floating, and then we're going to explode it underwater with a plastic cap

to simulate that the hatch only has a small resistance to blowing open. We'll be looking for differences in the damage pattern between the surface submarine and the sunken submarine. We're going to be utilising an underwater explosive, C4. We're going to place it inside the sub, in the approximate location that the scuttling charges are placed, which is in this area here. The first experiment will replicate a scuttling charge with the midget sub surfaced. Fire in the hole! Fire in the hole! The first result is disappointing. It doesn't match the damage discovered underwater. It doesn't look anything like the one we're thinking about. The team decides to experiment with a slightly larger charge. Fire in the hole!

Oh, that's perf... (Laughs) I think we overdid it a little bit. Yeah. We're going to need another tank. Whether the charge is large or small,

it appears that midget sub number 5 was not scuttled on the surface. A new tank is prepared and the replica of the midget sub is secured to the bottom. Next, we want to replicate with a smaller charge, exactly the same charge, but at the bottom of that tank over there

so we can see what happened if it exploded on the bottom. Fire in the hole! The damage is more similar to the Pearl Harbor sub, which leads me to think the scuttling charge was set off with the sub on the bottom, not on the surface. That's very possible. The demolition team concludes that the sub was scuttled underwater, which implies the remains of the crew are still inside. But none of this explains how midget sub number 5 wound up in three pieces at the bottom of the ocean, several miles outside Pearl Harbor. During the underwater investigation, three mysterious cables were found attached to all three pieces of the submarine. We've got four mating surfaces. For a salvage diver like John Chatterton, My best guess is that this submarine was salvaged. It was brought up, put on some kind of platform. It was cut apart. The three sections were taken apart, and then they were taken out and dumped. But who dumped it and why? SONG: # When there is always something there to remind me # Always something there to remind me... # VOICEOVER: Get into the spirit this season with 'Spirit of Tasmania'. Don't forget that if you've already booked your ticket, you can take the car from an extra $83 each way. And why not give a 'Spirit of Tasmania' gift voucher

for the perfect pressie? Book now at: And make it a trip to remember. Anyone would love a photo gift card from Bunnings for Christmas. All you do is go to the website, upload a favourite photo, and we'll mail it out to you. They get to choose exactly what they want and keep the card afterwards. Homelite blower vac, $54.98. Karcher pressure washer, $97. Swing set, $89. Oriental lanterns, $10.98 each. If you happen to find a cheaper price on a stocked item, we'll beat it by 10%. I love Christmas. It's great. SONG: # Bunnings Warehouse! # Lowest prices are just the beginning. John Chatterton joins Parks Stephenson for a closer look at the West Loch, where the team believes midget sub number 5 was scuttled. What do we have over here, Parks? Well, this is the Waipio Peninsula. It's largely uninhabited. Back in 1941, it was covered with sugarcane fields.

But this is the entrance to the West Loch. And then they see it - the final clue, hidden in plain sight. Now, what we're approaching here is the wreck of the LST 480. It stands for Landing Ship, Tank.

These are naval vessels built to carry troops, cargo and tanks directly onto shore. The area surrounding the wreck of midget sub number 5 is littered with the landing craft the LSTs carried. KERBY: That's a big rock here. Okay... Oh, no, it's not a rock, it's a landing craft. When we were searching for the midget sub pieces, we ran across numerous damaged amphibious track vehicles. KERBY: Oh, no, this is another landing craft, a different one. Ah, they're all over the place. But why are they here? Turns out Pearl Harbor

It took place three years later, on May 21, 1944. Unlike December 7, this second disaster is not well known because, until recently, it was veiled in secrecy. As the Navy prepared for the invasion of the Pacific island of Saipan, a terrible explosion claimed the lives of almost 200 people in the West Loch. There was an accident in the ammunition handling aboard the LST 353. The explosion spread from LST to LST, sank six LSTs, The invasion needed to get back on track, so the West Loch was cleaned up quickly and quietly. The remnants of the disaster that could be raised were hauled outside the harbour and dumped. it appears the Navy may have also scooped up midget sub number 5, long after it was scuttled in the West Loch.

It's my contention that during that clean-up, they found our midget sub. They raised it, put it in with the rest of the debris and took it out there and dumped it all together. Perhaps that's why it now lies amidst an assortment of US military hardware from the West Loch disaster, three miles outside Pearl Harbor,

a thousand feet at the bottom of the sea. to honour the remains of pilot Sadamu Kamita and Commander Masaji Yokoyama. A cupful of sand is carefully removed from the seafloor,

beneath the sealed control room of the midget sub, I'm glad you were down there. The remains for the spirits of the dead, ah, from the submarine would now be reunited with the sand. Admiral Ueda presents the sand to Petty Officer Dewa. He brings it to a memorial service for Japanese sailors who lost their lives in midget submarines. The sand that was brought back from Hawaii is purified. Now becomes Japanese soil, so to speak. For Kichiji Dewa, the mission is at last over. For Parks Stephenson, it's always been about bringing the facts to light. I want their accomplishment known, so that their sacrifice will have meaning. And each step we take towards the truth of the heroic and tragic events not only honours the people who lived it, Captions (c) SBS Australia 2011 This program is captioned live.

A tough decision but the right one.

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