How The Prisoner TV series and planetary defense are related.
According to this video, Donald Tosh (who was a script editor for Doctor Who), met Prisoner script editor George Markstein. Those discussions led to a script proposal by Tosh in which No. 6 (The Prisoner) meets French aviator Antoine de Saint-Exupéry' in the Village (a prisoner himself). De Saint-Exupéry' is the author of The Little Prince, who lives on an asteroid called B-612. The B-612 Foundation is a non-profit foundation organized to work for planetary defense issues.
The following video is Tosh talking about his script discussions with Markstein.
Link: YouTube Video ("THE PRISONER. Unused script.")
