US President Barack Obama chats with Col. Mike Minihan,Commander, 89th Airlift Wing, Andrews Air Force Base, while making his way to board Air Force One May 8, 2012 at Andrews Air Force Base in Maryland. Obama was headed to Albany to visit the College of Nanoscale Science and Engineering’s Albany NanoTech Complex at the State University of New York and to speak on the economy. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/GettyImages)