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Suitcase nuclear device
A suitcase nuclear device (also suitcase bomb, backpack nuke, mini-nuke and pocket nuke) is a tactical nuclear weapon which uses, or is portable enough that it could use, a suitcase as its delivery method. Thus far, only the United States and the Soviet Union/Russian Federation are known to have possessed nuclear weapons programs developed and funded well enough to manufacture miniaturized nuclear weapons.〔.〕 Both the United States and the Soviet Union have acknowledged producing nuclear weapons small enough to be carried in specially-designed backpacks during the Cold War, but neither have ever made public the existence or development of weapons small enough to fit into a normal-sized suitcase or briefcase. It has also been reported that Israel has produced nuclear warheads small enough to fit into a suitcase.〔.〕
==Overview==
The Center for Defense Information (CDI) claims that a detailed training replica—with dummy explosives and no fissionable material—was routinely concealed inside a briefcase and hand-carried on domestic airline flights in the early 1980s.〔.〕
While the explosive power of the W54—up to an equivalent of 6 kiloton〔The W54 test in Operation Hardtack II test Socorro on Oct 22, 1958 was the highest yield W54 family test with a yield of 6 kilotons and weighed 58.1 lb. See (Hardtack 2 ) at the (www.nuclearweapon.org ) website.〕 of TNT (though the more common yield was much lower)—is not much by the normal standards of a nuclear weapon (the bombs dropped on Hiroshima and Nagasaki at the end of World War II were around 16 to 21 kilotons each), their value lies in their ability to be easily smuggled across borders, transported by means widely available, and placed as close to the target as possible.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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