U.S. President Obama laughs as Republican presidential nominee Romney speaks during the final presidential debate in Boca Raton

 
U.S. President Obama laughs as Republican presidential nominee Romney speaks during the final presidential debate in Boca Raton
U.S. President Barack Obama (R) laughs as Republican presidential nominee Mitt Romney speaks during the final U.S. presidential debate in Boca Raton, Florida October 22, 2012. REUTERS/Rick Wilking