Dutch Prime Minister Mark Rutte (L) and U.S. President Barack Obama attend the closing press conference of the Nuclear Security Summit (NSS) 2014 in The Hague, the Netherlands, on March 25, 2014. The Nuclear Security Summit (NSS) 2014 concluded in The Hague on Tuesday with a communique reached by world leaders to prevent nuclear material from falling into the hands of terrorists. (Xinhua/Yin Gang)
Dutch Prime Minister Mark Rutte (L) and U.S. President Barack Obama attend the closing press conference of the Nuclear Security Summit (NSS) 2014 in The Hague, the Netherlands, on March 25, 2014. The Nuclear Security Summit (NSS) 2014 concluded in The Hague on Tuesday with a communique reached by world leaders to prevent nuclear material from falling into the hands of terrorists. (Xinhua/Yin Gang)
U.S. President Barack Obama attends the closing press conference of the Nuclear Security Summit (NSS) 2014 with Dutch Prime Minister Mark Rutte in The Hague, the Netherlands, on March 25, 2014. The Nuclear Security Summit (NSS) 2014 concluded in The Hague on Tuesday with a communique reached by world leaders to prevent nuclear material from falling into the hands of terrorists. (Xinhua/Yin Gang)