Col. Andrea Tullos, 42nd Air Base Wing commander, greets President Barack Obama and the first family as they depart Air Force One, March 7, 2015, Maxwell Air Force Base, Alabama. The president and his family flew into Maxwell before boarding Marine One for Selma, Alabama, where he gave a speech to commemorate the 50th anniversary of ‘Bloody Sunday,’ when civil rights demonstrators were attacked by policemen. (U.S. Air Force photo by Airman 1st Class Alexa Culbert)