U.S. President Barack Obama waves goodbye at the end of a press conference with Dutch Prime Minister Mark Rutte after the closing session of the Nuclear Security Summit in The Hague, Netherlands, ... more 
U.S. President Barack Obama waves goodbye at the end of a press conference with Dutch Prime Minister Mark Rutte after the closing session of the Nuclear Security Summit in The Hague, Netherlands, Tuesday March 25, 2014. Thirty-five countries pledged Tuesday to turn international guidelines on nuclear security into national laws, a move aimed at preventing terrorists from getting their hands on nuclear material. Tuesday's initiative following a two-day summit of leaders also commits countries to open up their security procedures to independent review, a further step toward creating an international legal framework to thwart nuclear terrorism, said a joint statement from the Netherlands, the United States and South Korea. (AP Photo/Toussaint Kluiters, POOL) less 
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Associated Press | Photo By Toussaint Kluiters, POOL
Tue, Mar 25, 2014 12:48 PM EDT