U.S. President Barack Obama walks to his limousine surrounded by Secret Service Agents upon his arrival in Detroit

 
U.S. President Barack Obama walks to his limousine surrounded by Secret Service Agents upon his arrival in Detroit
U.S. President Barack Obama walks to his limousine surrounded by Secret Service Agents upon his arrival in Detroit, Michigan, April 18, 2012. Obama is traveling to Ohio for an event on jobs and the economy and to Michigan for election fundraisers. REUTERS/Jason Reed (UNITED STATES - Tags: POLITICS)