Los Obama visitan Berlín
US President Barack Obama and German Chancellor Angela Merkel arrive for a press conference on June 19, 2013 at the Chancellery in Berlin. Barack Obama will walk in John F. Kennedy's footsteps this week on his first visit to Berlin as US president, but encounter a more powerful and sceptical Germany in talks on trade and secret surveillance practices. AFP PHOTO / JOHANNES EISELE
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)