Andrew Exum, Fellow at the Center for A New American Security, assesses the possibility of a new Taliban insurgency in Afghanistan and its ramifications for U.S. strategy there. The past six months have seen some remarkable successes in southern Afghanistan. But if hard-won security gains collapse in the face of a renewed Taliban offensive in 2011, the NATO strategy to secure Afghanistan will be in grave danger. Andrew Exum will discuss the situation in southern Afghanistan as well as how the American public can know whether the strategy is succeeding or failing this summer.