U.S. Vice President Joe Biden along with Col. Larry Martin, 6th Air Mobility Wing commander; Col. David Cohen, 6th Air Mobility Wing Vice commander; and Chief Master Sgt. Derrick Crowley, 6th Air Mobility Wing Command chief, greet the crowd after the vice president's arrival at MacDill Air Force Base, Fla., Jan. 28. President Obama and Biden landed at MacDill in Tampa, Fla., to conduct a townhall-style meeting at the University of Tampa.