Editor of Nuclear Times magazine from 1982 to 1986. He has written widely about the Hiroshima and Nagasaki atomic bombings, including Hiroshima in America: A Half Century of Denial, with Robert Jay Lifton. His latest is Atomic Cover-Up: Two U.S. Soldiers, Hiroshima & Nagasaki and The Greatest Movie Never Made. Mitchell is a daily contribute to TheNation.com and has been chronicling the lead-up to the bombing in a series of blog coasts called "Countdown to Hiroshima 1945."