The resources below are books, articles, and other media that are useful references for aspects of this topic. When they are complete, each reference will be described and tagged. See here for an example of a more or less complete entry.
Burns, Robert and Richard Lardner. " Retired US general says nuclear launch order can be refused." AP News. November 14, 2017. https://www.apnews.com/14eb66de62fc49b181680ccbd7394646.
Graff, Garrett M. "The President’s Secret Air Force." Politico. May 2, 2017. https://www.politico.com/magazine/story/2017/05/02/the-presidents-secret-air-force-215091.
Hering, Harold. "Nukes." Interview with Latif Nasser. Radiolab. Podcast audio, April 7, 2017. https://www.wnycstudios.org/story/nukes.