Remember Hiroshima? ... and Nagasaki?
Introduced by Melvyn Bragg
' We loaded up the nuclear material and it made a big spherical package and the last thing we put on was a cap, and on that cap most of the guys wrote some little message: it was traditional to write messages on bombs - purely ritual behaviour - Memories to Hirohito, In Memory of Bataan, or whatever it was, and I remember writing 10, tons. I had that much, and not more, enthusiasm for it.'
Exactly 30 years ago today, nuclear physicist Philip Morrison supervised the loading of the A-bomb which was dropped on Nagasaki. In conversation with MELVYN BRAGG , he recalls for viewers how scientists like himself came to be involved in the manufacture of nuclear weapons and the campaign some of them have waged to limit the arms race.
Film cameraman BILL MATTHEWS Film editor JOHN BARNES
Production assistant STEPHANY MARKS Producer TONY CASH Editor BILL MORTON