For two decades during the Cold War, the United States Army tested chemical weapons on American soldiers at Edgewood Arsenal, a secluded research facility on the Chesapeake Bay. Thousands of men were recruited to volunteer; at the arsenal, they were exposed to chemicals ranging from mustard gas and sarin to LSD and PCP. In the December 17th issue of The New Yorker, Raffi Khatchadourian wrote about Colonel James S. Ketchum, who once headed the clinical studies at Edgewood and has become the program’s most prominent defender. In reporting the piece, Khatchadourian obtained hundreds of Army documents and raw scientific data, along with archival films about the human experiments. Some of the material was provided by doctors who worked at the arsenal; some of it was obtained directly from the government, through Freedom of Information Act requests. (These requests were made with the assistance of Betsy Morais, who works on the magazine’s editorial staff.) We have compiled some of that material here, in an online package called “Secrets of Edgewood.” Click-through for more: http://nyr.kr/RSZwLo

Cartoon of the night by Emily Flake. For more: http://nyr.kr/OPTpFP