Experts inspect repairs to the Tomb of Unknowns at Arlington National Cemetery Oct. 21, 2011 as the Tomb Sentinel stands by. The cemetery and Norfolk District, U.S. Army Corps of Engineers invited experts out to inspect September's repairs to the tomb. (U.S. Army photo/Kerry Solan)

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Photo by: Kerry Solan |  VIRIN: 111021-A-ET072-018.JPG