President Barack Obama, accompanied by Sens. Lamar Alexander and Bob Corker, and Congressman Jim Duncan, are greeted by Vice President Joe Biden, Tennessee Gov. Bill Haslam, Knoxville Mayor Madeline Rogero and 134th Air Refueling Wing Commander Thomas Cauthen as they exit Air Force One at McGhee Tyson Air National Guard Base, Tenn. Jan. 9. The president visited Pellissippi State Community College in Knoxville to announce a new education initiative. (U.S. Air National Guard photo by Master Sgt. Kendra M. Owenby, 134 ARW Public Affairs)