MACDILL MOMENT U.S. President Barack Obama greets the crowd during his visit to MacDill Air Force Base, Fla., Jan. 28, 2010. Obama and Vice President Joe Biden landed at MacDill in Tampa, Fla., to conduct a townhall-style meeting at the University of Tampa. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 190184-M-WDN75-903.jpg Photo Gallery