Support WBURFuture Of U.S. Troops Looms Over Afghan Leader's VisitPlay04:00Download AudioJackie NorthamJanuary 08, 2013 SharePresident Obama and Afghan President Hamid Karzai greet each other during a May 20 meeting at the NATO Summit in Chicago. Karzai is in Washington, D.C., this week to meet Obama and other senior U.S. officials. (AP)
