Who could remember, 50 years ago they had the same concerns for the environment and fellow human beings as we do.
And so time and money was spent on the development of a… clean H-Bomb
William L. Lawrence, Construction of a ‘Clean’ H-Bomb Presents Formidable Problems for the Experts – June 23, 1957 – The New York Times
How comforting…perhaps after a future war, when scavenging for survival through flattened cities there will be little danger, at least of the radioactive variety.