Republican presidential candidates businessman Herman Cain and former U.S. House Speaker Newt Gingrich shake hands at the end of the CNN GOP National Security debate in Washington

 
Republican presidential candidates businessman Herman Cain and former U.S. House Speaker Newt Gingrich shake hands at the end of the CNN GOP National Security debate in Washington
U.S. Republican presidential candidates businessman Herman Cain and former U.S. House Speaker Newt Gingrich (R) shake hands at the end of the CNN GOP National Security debate in Washington, November 22, 2011. REUTERS/Jonathan Ernst