FILE - In this Sept. 9, 2012 file photo, President Barack Obama speaks in West Palm Beach, Fla. For the first time in a decade, the Sept. 11 attacks and the wars that resulted are not the focus of the presidential campaign. But President Barack Obama, who leads Republican Mitt Romney on national security issues, may try to change that this fall as he seeks to sway undecided voters and court traditional Republican constituencies. (AP Photo/Pablo Martinez Monsivais, File)