 Scott Turow cites the letters as being among the sources for his 2005 novel "Ordinary Heroes"

De Grazia wrote manuals of psychological warfare for the CIA for the Korean War and organized and investigated psychological operations for the United States Department of Defense during the Vietnam War.His reports on psychological operations, now largely declassified, include "Target Analysis and Media in Propaganda to Audiences Abroad" (1952), "Elites Analysis" (1955), as well as "Psychological Operations in Vietnam" (1968).On October 31, 2014, he was posthumously designated a Distinguished Member of the Regiment of Psychological Operations of the Special Operations Command at Fort Bragg, North Carolina.