FILE - In this June 17, 2011, file photo Republican presidential hopeful Herman Cain speaks at the Republican Leadership Conference in New Orleans, La. On ABC's This Week on Sunday, Oct. 21, 2011, Cain said he should not have stayed silent after the audience at a GOP debate booed a gay soldier serving in Iraq. He said it would have been "appropriate" for him to have defended the soldier. None of the candidates on stage at the Sept. 22 forum responded to the boos. (AP Photo/Pat Semansky, File) The Georgia businessman told ABC?s This Week on Sunday that it would have been ?appropriate? for him to have asked the audience to respect the soldier. (AP Photo/Patrick Semansky)