Vann feared exposure would prevent his promotion to general.

Evidence

He had known that he could not hide the black spot from a board considering colonels for promotion to general officer. … He had tried and failed before going to Vietnam to steal those records and destroy them in order to remove the stain. — Neil Sheehan, A Bright Shining Lie, 1066

Categorization

• corroborated: 2 independent passages support this claim — Neil Sheehan, A Bright Shining Lie, 1066