Shuttle Program Manager Ron Dittemore pointing looks over Columbia debris with members of the Columbia Restoration Project Team.

Shuttle Program Manager Ron Dittemore (center, pointing) looks over Columbia debris with members of the Columbia Restoration Project Team. To his right is Ralph Roe, with the Orbiter Work Group, JSC. The team is examining pieces and attempting to reconstruct the orbiter as part of the investigation into the accident that caused the destruction of Columbia on its return to Earth from mission STS-107. To date, four shipments have arrived from Barksdale AFB, Shreveport, La., the collection point for debris.