FILE - In this May 29, 2010 file photo, actors Joe Mantegna, left, and Gary Sinise, practice their lines during a rehearsal of the 2010 National Memorial Day Concert on the National Mall in Washington. Celebrities have long supported military service members and veterans, going back to Bob Hope’s Christmas Tour to Vietnam with the USO in 1964. But no star power is needed to support this community, said the “Criminal Minds” star Mantegna, adding that any American can “examine their own life and say 'What can I do?'" (AP Photo/Jacquelyn Martin, File)