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By Mail Foreign Service PUBLISHED: 18:46 EST, 19 June 2013 | UPDATED: 06:09 EST, 20 June 2013 President Obama called for countries to break down the walls in their hearts as he gave a speech at Berlin's iconic Brandenburg Gate. Speaking from behind a wall of bullet-proof glass, the US president removed his jacket and rolled up his sleeves as he battled the 86F temperature on Wednesday, quipping: 'People of Berlin, your welcome is so warm I'm going to take off my jacket.' At times wiping away beads of sweat, the President read from paper because the teleprompter wasn't working.

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