That is so shallow since the U.S. and Russia are the only countries with the capability to bring on Armegeddon, it is up to those two countries to stop it, or make it happen.
Maybe, Do they need ICBMs?
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Terrorist Related Information ("Suitcase Nukes")
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The smallest nuclear weapon the US produced was the "
Davy Crockett" - a recoilless rifle round. It weighed about 51 pounds, was 16 inches long and 11 inches in diameter. It produced a variable yield of up to 1 kiloton.
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An excellent discussion of this issue is
here.
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The Soviets supposedly produced "suitcase nukes" and there is no reason to doubt this assertion. Former Soviet General Ledbed has asserted that a number of these are not accounted for. There are reasons, however, to doubt his assertions given his political position. Interestingly, Ledbed was recently killed in a helicopter crash.
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[FONT=Book Antiqua, Times New Roman, Times]The Soviets supposedly produced "suitcase nukes" and there is a US DOE estimate that only 4kg of Plutonium is necessary to make a fission weapon. Some believe that only 1kg is needed. [/FONT]
http://www.tinyvital.com/Misc/nukes.htm
[FONT="]What if Iran could have sleeper cells in every first and second world city in the world each armed with sever 50 pound nuclear bombs. [/FONT]