Executive Director of the International Campaign to Abolish Nuclear Weapons Beatrice Fihn, right, talks with Vatican Secretary of State Pietro Parolin on the occasion of a conference on nuclear disarmament, at the Vatican, Friday, Nov. 10, 2017. The Vatican hosted Nobel laureates, U.N. and NATO officials and a handful of nuclear powers at a conference aimed at galvanizing support for a global shift from the Cold War era policy of nuclear deterrence to one of total nuclear disarmament.(AP Photo/Andrew Medichini)
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