Physicist Myron Katzer was interviewed by journalist Stephanie Cooke. I enjoyed the flavor of what he said about the epochal Geneva conference in August 1955 and its impact on freeing up vital technical reactor information from the confines of the military:
The thing that permeated everything in those days, of course, was classification. The real crucial step to make the separation between military and civilian applications was declassification and the thing that moved that forward was the Geneva conferences, which had a very competitive flavor. Things got declassified to enable people to demonstrate their expertise.
Cooke, Stephanie. 2009. In Mortal Hands: A Cautionary History of the Nuclear Age. Bloomsbury. 116.

