STRASBOURG, FRANCE - APRIL 01:  French police walk past a Charles Chaplin impersonator in front of the cathedral on April 1, 2009 in Strasbourg, France. The NATO's 60th anniversary summit will take place in Strasbourg, France, Baden-Baden and Kehl, Germany from April 3-4. Getty Images logo Getty Images 8 months ago

STRASBOURG, FRANCE - APRIL 01: French police walk past a Charles Chaplin impersonator in front of the cathedral on April 1, 2009 in Strasbourg, France. The NATO's 60th anniversary summit will take place in Strasbourg, France, Baden-Baden and Kehl, Germany from April 3-4.