USA TODAYMy Lai Amnesia Fifty Years OnAntiwar.comThe American Psychiatric Association added Post-Traumatic Stress Disorder to its classifications only in 1980, but character-changing responses to trauma are common. “Soldier's Heart” of the Civil War became “shell shock” in the First World War and ...ESSAY: Mỹ Lai Amnesia, Fifty Years OnPagosa Daily Postall 25 news articles »