THE HAGUE, NETHERLANDS - MARCH 24:  U.S. President Barack Obama attends a dinner for delagates gathering for the Nuclear Security Summit hosted by King Willem-Alexander and Queen Maxima of the Netherlands at Huis ten Bosch on March 24, 2014 in The Hague, Netherlands. The Nuclear Security Summit, held March 24-25, will be attended by world leaders and is aimed at preventing nuclear terrorism.  (Photo by Phil Nijhuis - Pool/Getty Images)