General Kenneth McKenzie, head of U.S. Central Command, said yesterday that Afghan security forces will have a tough time holding back the Taliban following a full withdrawal of U-S forces. The concerns the General expressed before the Senate Armed Services Committee Thursday ranged from the lack of U.S. air support the Afghan Security Forces would get, to the basic maintenance of those aircrafts, which is done largely by American contractors. FOX’s Trey Yingst speaks with FOX News Pentagon Correspondent Lucas Tomlinson about the concerns of some in the military and congress about the complete withdrawal from Afghanistan.