Col. Jeffrey Taliaferro, 28th Bomb Wing commander, speaks to the crowd during the 2009 Independence Day celebrations at Mt. Rushmore National Memorial. Colonel Taliaferro commands the largest B-1 combat wing in the U.S. Air Force, with 28 aircraft and more than 4,300 military and civilian members. (U.S. Air Force photo/Airman 1st Adam Grant)