[youtube]http://www.youtube.com/watch?v=1wcrkxOgzhU[/youtube]

Video posted on YouTube shows Apollo astronaut Col. Buzz  Aldrin (Air Force, ret.) punching a moon landing conspiracy theorist who was harassing him in 2002.

Military Times landed an interview with Aldrin and had a chance to ask him about his famous punch:

Q. Rumor has it you punched Apollo 11 conspiracy theorist Bart Sibrel in 2002 when he tried to stage a confrontation with you. True?

A. I became an immediate hero again of many people. This individual had bothered quite a few other astronauts. I just didn't feel like having someone bring their own TV camera and having someone call me a liar and a cheat could be left unanswered. It was obviously a gesture on my part to an individual interfering with the freedom of other people; and the absurdity of using national achievements to propel |a selfish individual to |notoriety is the height of arrogance.

See the rest of the interview in the April 1, 2013 Issue of Army Times, Air Force Times, Marine Corps Times, and Navy Times.