Soldiers buried as "unknown" due to careless record keeping

Mark Benjamin of Salon.com reports of continuing problems at Arlington National Cemetery.  Burial mix-ups include cremated remains being dumped in a landfill before being recovered and buried as an unknown soldier. Careless record keeping has contributed to others being buried as unknown soldiers. "In some cases cemetery officials lost track of the identity of remains during burial operations and simply erected an 'Unknown' headstone above those graves when they could not straighten it out."