Source: Lt. Cmdr. Brian Badura/US Navy

The Nuclear Button U.S. Presidents Can Push at Will

Obama wants UN help to strengthen the test ban treaty, but supercomputers have already made exploding bombs obsolete.

As President Barack Obama counts down his last months in office, he has returned to one of his earliest and most ambitious promises, one he fully articulated in Prague in 2009: “I state clearly and with conviction America’s commitment to seek the peace and security of a world without nuclear weapons.“

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