German Chancellor Angela Merkel congratulates Danish cartoonist Kurt Westergaard, who in 2005 drew the most controversial of 12 caricatures of the Prophet Muhammad, on receiving the M100 Media Prize 2010, as the former head of the state-funded body which manages the archives of the former East German secret police Stasi Joachim Gauck and Potsdam's mayor Jann Jakobs, not seen, look in, Potsdam, near Berlin, eastern Germany, September 8, 2010.