After a decade of fighting in Afghanistan, at tremendous cost in American blood and treasure, many Americans are now asking: Why are we there? What do we have to show for our efforts? The answers are troubling: A government, under President Hamid Karzai, that is corrupt, largely incompetent, and of questionable loyalty; inept Afghan security forces that regularly turn their weapons on their American and NATO advisers; and a resurgent Taliban poised to regain control of the country after U.S. forces withdraw. Many look at these facts and conclude that the U.S. can’t win in Afghanistan and should therefore get out. But few have examined the dire consequences of losing.