Media Blog reader John D. B. wrote in to point out William M. Arkin’s biography:

Arkin’s interest in Iraq began when he was director of military research for Greenpeace International. During the Gulf War, he headed Greenpeace’s war response team and co-authored On Impact: Modern Warfare and the Environment: A Case of the Gulf War (May 1991),which was the first comprehensive study of the war’s human and environmental effects.

Hugh Hewitt did some research on Arkin back in 2003. Of course, the Washington Post’s own biography of Arkin makes no such mention.