Building a fence
ARLINGTON, Va. – Contractors install white fencing at the John F. Kennedy Eternal Flame at Arlington National Cemetery April 29, 2013. The fencing will block the public’s view of the flame while contractors install burners, an igniter and new gas and air lines. Work on the burner itself will take about three weeks to complete. (U.S. Army photo/Patrick Bloodgood)

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Photo by: Patrick Bloodgood |  VIRIN: 130429-A-OI229-024.JPG