There are various media formats which tell and remember this real drama which happened 60 years ago. As one example I want to list "America's Lost H-Bomb: Palomares, Spain, 1966" by Randall C. Maydew and Julie Bush. A more known movie, "Men of Honor", tells a very small part of the story which influenced a navy diver's life.
What happened: Palomares went down in history as the site of the world's largest nuclear weapons accident to date. On January 17, 1966, at the Cold War, four nuclear bombs fell from the sky. A US bomber collided with its refueling aircraft while refueling in midair and broke apart. The bombs, with approximately 100 times the explosive power of the Hiroshima bomb, did not explode. Two of the nuclear bombs shattered on impact with the ground, releasing highly toxic radioactive weapons-grade plutonium. A third bomb was slowed by a safety parachute and remained undamaged. The fourth bomb fell into the Mediterranean Sea and was only discovered and recovered from the water after a fisherman reported seeing it. The broken arrow case became reality. Much more unbelievable details are available. I read these and was shaking my head.
More dramatic than the accident itself was the time after it and that the cleanup was not handled responsibly and not done properly. After unprofessional cleanup efforts in 1966, a study in 2004 (!) still found excessive levels of radioactive contamination. In response, the affected areas were expropriated and cordoned off to prevent further use. Further negotiations between Spain and the US failed to reach an agreement on who would bear the costs of further decontamination. Last money was transferred in 2009. Although a signed agreement to clean up all affected areas, in 2022, the areas were still contaminated and cordoned off. Shall there be no money in an annual over 800 billion USD military budget to carry out responsibility by a final clean-up with modern effective methods and measures?
So, whenever we travelers plan to visit the Southeastern coast of Spain we shall remember what can happen if parts of humankind think that they have everything under control. A refueling maneuver in the sky with a bomber carrying four nuclear bombs was and shall never be routine.