President Barack Obama presents a wreath at the Tomb of the Unknowns at Arlington National Cemetery during a Veterans Day ceremony in Arlington, Va., Sunday, Nov. 11, 2012. (AP Photo/J.

 

              President Barack Obama presents a wreath at the Tomb of the Unknowns at Arlington National Cemetery during a Veterans Day ceremony in Arlington, Va., Sunday, Nov. 11, 2012. (AP Photo/J.
President Barack Obama presents a wreath at the Tomb of the Unknowns at Arlington National Cemetery during a Veterans Day ceremony in Arlington, Va., Sunday, Nov. 11, 2012. (AP Photo/J. Scott Applewhite)