Russian TV stations broadcast secret nuclear torpedo plans
The Kremlin has admitted that Russian television accidentally showed secret plans for a nuclear torpedo system on air.
Two Kremlin-controlled channels, NTV and Channel One, showed a military official looking at a confidential document containing drawings and details of a weapons system called Status-6, designed by Rubin, a nuclear submarine construction company based in St Petersburg.
The nuclear torpedoes, to be fired by submarines, would create zones of extensive radioactive contamination making them unsuitable for military or economic activity for a long period, says the document, which is clearly visible in the footage for several seconds.
http://www.theguardian.com/world/2015/nov/12/russian-tv-stations-broadcast-secret-nuclear-torpedo-plans
On the diagram the giant torpedo's range is given as "up to 10,000km" (6,200 miles) and depth of trajectory is "up to 1,000m" (3,300ft).
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Rossiiskaya Gazeta called the torpedo a "robotic mini-submarine", travelling at 100 knots (185km/h; 115mph), which would "avoid all acoustic tracking devices and other traps".
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That would be a type of thermonuclear warhead with a layer of cobalt-59, which on detonation would be transmuted into highly radioactive cobalt-60 with a half-life longer than five years.
Such a weapon would guarantee "that everything living will be killed", the paper said - there would not even be any survivors in bunkers.
http://www.bbc.co.uk/news/world-europe-34797252
Of course, 'accidental' viewing of documents often turns out to be carefully planned.