Retired U.S. Army Lt. Col. Bob Maginnis says President Obama had little choice but to give Gen. Stanley McChrystal the boot, and he applauds the choice of Gen. David Petraeus to succeed McChrystal. But what about the current policy in Afghanistan? What does Maginnis see as major problems? And when we will we know whether our current strategy is working? We ask Col. Maginnis.