President Trump's unhinged behaviour, especially on January 6th, prompted concern about, and a flurry of interest in, how the so-called 'nuclear button' works. Here are some of the expert articles used in the media:
* Amy Woolf, for the Congressional Research Service, 2020, Defense Primer: Command and Control of Nuclear Forces.
* William Perry, Politico, 2021, Trump Still Has His Finger on the Nuclear Button. This Must Change.
* Jeffrey Lewis & Bruno Tertrais, Center for Nonproliferation Studies, 2019, The Finger on the Button: The Authority to Use Nuclear Weapons in Nuclear-Armed States.