In a May 5, 1947, letter to David Lilienthal, chair of the Atomic Energy Commission, Bradley explains his purpose in publishing information about the tests. He writes, "in light of current world affairs we Americans cannot afford the luxury of ignorance," and adds that "informed public opinion is the only hope in playing our cards right in the great international game going on today."
In addition to his correspondence and manuscripts of No Place to Hide, Bradley's papers contain numerous photographs associated with the tests as well as his personal log for that period. The entry for July 1, 1946, reads
Ask for MS-1002. A guide to the collection is available. The published version of No Place to Hide is also available in Rauner.