Republican vice presidential nominee Ryan and U.S. Vice President Biden shake hands at the conclusion of the U.S. vice presidential debate in Danville

 
Republican vice presidential nominee Ryan and U.S. Vice President Biden shake hands at the conclusion of the U.S. vice presidential debate in Danville
Republican vice presidential nominee Paul Ryan (L) and U.S. Vice President Joe Biden shake hands at the conclusion of the U.S. vice presidential debate in Danville, Kentucky October 11, 2012. REUTERS/Pool