Experts gathered at the Tomb of Unknowns at Arlington National Cemetery Oct. 21, 2011 to inspect repairs made to cracks in the stone of the tomb. (U.S. Army photo/Kerry Solan)
Experts gathered at the Tomb of Unknowns at Arlington National Cemetery Oct. 21, 2011 to inspect repairs made to cracks in the stone of the tomb. (U.S. Army photo/Kerry Solan)