NOVA's Killer Subs in Pearl Harbor Premiers Tonight on PBS

Check your TV listing for local times (8 PM EST).

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During WWII, the Imperial Japanese Navy built and deployed hundreds of different submarines, but on the morning of December 7th, 1941, they debuted a particularly secret weapon—the Type A Ko-Hyoteki midget submarine. Five of these small subs furtively made their way toward Pearl Harbor with the mission to attack U.S. battleships from below. At a quarter the size of common fleet subs, the midgets were a technological marvel, far outperforming their western counterparts. In this interactive, explore a model of the Ko-Hyoteki deployed in the attack.—Parks Stephenson

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More from the NOVA Preview or a Podcast. The 5 subs were not 'midgets', just small. Females or Hugo Chavez would have been excellent fits.

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Submarines are always silent and strange.