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.
Critchlow, Robert D. Nuclear Command and Control: Current Programs and Issues. CRS Report No. RL33408. Washington, D.C.: Congressional Research Service, 2006. https://fas.org/sgp/crs/nuke/RL33408.pdf.
Futter, Andrew. "The double-edged sword: US nuclear command and control modernization." Bulletin of the Atomic Scientists. June 29, 2016. https://thebulletin.org/2016/06/the-double-edged-sword-us-nuclear-command-and-control-modernization/.
Knipp, Delores J., et al. "The May 1967 Great Storm and Radio Disruption Event: Extreme Space Weather and Extraordinary Responses." Space Weather 14 (2016): 614–633. https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1002/2016SW001423.
Mecklin, John. "Duke’s Peter Feaver on the president and US nuclear command and control." Bulletin of the Atomic Scientists. November 30, 2017. https://thebulletin.org/2017/11/dukes-peter-feaver-on-the-president-and-us-nuclear-command-and-control/.
Slocombe, Walter B. Democratic Civilian Control of Nuclear Weapons. Policy Paper no. 12. Geneva: Geneva Centre for the Democratic Control of Armed Forces (DCAF), 2006. https://www.dcaf.ch/sites/default/files/publications/documents/pp12_democratic_civilian_control_nuclear_weapons.pdf.
Wellerstein, Alex and Avner Cohen. "If Trump wants to use nuclear weapons, whether it’s ‘legal’ won’t matter." Washington Post, November 22, 2017. https://www.washingtonpost.com/news/posteverything/wp/2017/11/22/if-trump-wants-to-use-nuclear-weapons-whether-its-legal-wont-matter/?utm_term=.b893af9d38d5.