U.S. President Barack Obama embraces German Chancellor Angela Merkel outside the Chancellery in Berlin, June 19, 2013. Obama will unveil plans for a sharp reduction in nuclear warheads in a landmark speech at the Brandenburg Gate on Wednesday that comes 50 years after John F. Kennedy declared "Ich bin ein Berliner" in a defiant Cold War address. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS)
U.S. President Barack Obama embraces German Chancellor Angela Merkel outside the Chancellery in Berlin, June 19, 2013. Obama will unveil plans for a sharp reduction in nuclear warheads in a landmark speech at the Brandenburg Gate on Wednesday that comes 50 years after John F. Kennedy declared "Ich bin ein Berliner" in a defiant Cold War address. REUTERS/Thomas Peter (GERMANY - Tags: POLITICS)