Jerry Lembcke is Associate Professor Emeritus of Sociology at College of the Holy Cross in Worcester, Mass. He is the author of The Spitting Image: Myth, Memory and the Legacy of Vietnam and  Hanoi Jane: War, Sex, and Fantasies of Betrayal. His newest book is PTSD: Diagnosis or Identity in Post-empire America? He can be reached at  jlembcke@holycross.edu.