Steam billows from the cooling towers at Exelon's nuclear power generating station in Byron, Ill.
Steam billows from the cooling towers at Exelon's nuclear power generating station in Byron, Ill. - 
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In Wired magazine, Nicholas Thompson writes about system known as Dead Hand. It was designed by Soviet scientists in the mid 1980s to automatically retaliate against a nuclear strike from the U.S.

Thompson's new book on the cold war is The Hawk and the Dove.