Nick Turse is a freelance journalist living in New Jersey. Deborah Nelson is a staff writer in The Times' Washington bureau.
This report is based in part on records of the Vietnam War Crimes Working Group filed at the National Archives in College Park, Md. The collection includes 241 case summaries that chronicle more than 300 substantiated atrocities by U.S. forces and 500 unconfirmed allegations.
The archive includes reports of war crimes by the 101st Airborne Division's Tiger Force that the Army listed as unconfirmed. The Toledo Blade documented the atrocities in a 2003 newspaper series.
Turse came across the collection in 2002 while researching his doctoral dissertation for the Center for the History and Ethics of Public Health at Columbia University.
Turse and Nelson also reviewed Army inspector general records in the National Archives; FBI and Army Criminal Investigation Division records; documents shared by military veterans; and case files and related records in the Col. Henry Tufts Archive at the University of Michigan.