This week in Congress, top military officials are testifying on what went wrong in the U.S. troop withdrawal from Afghanistan. Will anyone in the government be held accountable? Read more:Chairman of the Joint Chiefs of Staff Gen. Mark A. Milley, Defense Secretary Lloyd Austin and U.S. Central Command chief Gen. Kenneth F. McKenzie are on Capitol Hill testifying in front of the Senate and House Armed Services committees on the fall of Kabul and the disastrous U.S. exit from Afghanistan. As lawmakers press for answers, Alex Horton reports on whether this hearing will result in accountability for the years of government missteps in handling the end of America’s longest war.