The big red button: Which world leaders have access to nuclear codes?

If all the nukes in the world are put together and detonated, the massive explosion would trigger a 50-kilometer fireball that would destroy all within a 3,000-kilometer radius of the blast

The myth of the big red button: How the ICBM force maintains

Never Give Artificial Intelligence the Nuclear Codes - The Atlantic

The End of 'America First': How Biden Says He Will Re-engage With

Countries which could push the nuclear 'red' button - BBC News

The Russian Nuclear Button – Foreign Policy

Nuclear Power, Page 3

COMMENT: Does Britain Really Have A 'Big, Red Nuclear Button'?

What is Russia's policy on tactical nuclear weapons?

Nuclear weapons of the United Kingdom - Wikipedia

An ethicist suggested the U.S. have nuclear launch codes implanted

Will Putin go nuclear? An updated timeline of expert comments

Nuclear Deterrence: A Wild Thought Experiment with Nuclear Codes