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4 of 22 from Photos: A half-century of ICBMs
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Where nuclear weapons are concerned, there is no margin for accidents. To fire an ICBM, two operators would have to turn keys in unison in two separate launch control mechanisms spaced more than 10 feet apart.
October 19, 2009 11:00 AM PDT
Photo by: PH2(AW) Gloria J. Barry/U.S. Department of Defense
