This infographic offers a few considerations from the recent podcast episode. This infographic shows which countries have nuclear weapons as well as who has the most nuclear weapons. (click on the image for larger view)
Hear my recent podcast episode on the Life of AQ Khan: North Korea, Iran and the Wrath of Khan that discusses how one of these countries became part of the club that includes which countries have nuclear weapons.
You might also enjoy my listing of expert guides and overviews for deep dives into some of the major topics like this that are impacting the world today.