Afghan President Hamid Karzai has called for the U.S. to speed up the withdrawal of combat troops from his country. That demand came after 16 Afghan villagers were murdered in the middle of the night - allegedly by a U.S. staff sergeant identified Friday as Robert Bales. The slayings have severely strained U.S. – Afghan relations and further eroded Americans’ support for the war. One survey taken after the atrocity showed half of Americans want President Obama to expedite troop withdrawal. Whether that would - or even could - happen is an open question. Diane and her guests discuss the future of U.S. involvement in Afghanistan.