U.S. President Obama makes a back-to-school speech in Philadelphia

 
U.S. President Obama makes a back-to-school speech in Philadelphia
U.S. President Barack Obama steps off Air Force One with Education Secretary Arne Duncan at Philadelphia Airport, September 14, 2010, before Obama made his second annual back-to-school speech at Julia R. Masterman Laboratory and Demonstration School in Philadelphia, September 14, 2010. REUTERS/Jason Reed (UNITED STATES - Tags: POLITICS EDUCATION)