Republican presidential candidates Romney, Santorum and Perry arrive on stage to participate in a Republican presidential candidates debate in Myrtle Beach

 
Republican presidential candidates Romney, Santorum and Perry arrive on stage to participate in a Republican presidential candidates debate in Myrtle Beach
Republican presidential candidates (R-L) former Massachusetts Governor Mitt Romney, former U.S. Senator Rick Santorum (R-PA) and Texas Governor Rick Perry arrive on stage to participate in a Republican presidential candidates debate in Myrtle Beach, South Carolina, January 16, 2012. REUTERS/Jason Reed