German Chancellor Angela Merkel, right, and United States' Vice President Joe Biden brief the media prior to a meeting at the chancellery in Berlin, Germany, Friday, Feb. 1, 2013. (AP Photo/Markus Schreiber)

Associated Press
German Chancellor Angela Merkel, right, and United States' Vice President Joe Biden brief the media prior to a meeting at the chancellery in Berlin, Germany, Friday, Feb. 1, 2013. (AP Photo/Markus Schreiber)
German Chancellor Angela Merkel, right, and United States' Vice President Joe Biden brief the media prior to a meeting at the chancellery in Berlin, Germany, Friday, Feb. 1, 2013. (AP Photo/Markus Schreiber)
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