Arlington was tarnished last year by the finding of more than 200 graves that had been misidentified or mislabeled, and by the discovery of dozens of discarded headstones apparently being used to shore up a small stream in a remote corner of the cemetery.

A previous superintendent, John C. Metzler Jr., was punished for poor management after the discovery of numerous instances of bodies being buried in the wrong place and incorrect headstones on graves.

Congress ordered a task force to fully document who's where.

Using a combination of high technology and old-fashioned research, the team is commissioned to compile a verified electronic database with no discrepancies among the records. Their work should be ready for an initial review by the end of September....