Men in Black: The UFO Buff's Bogeymen

The Men in Black are said to be mysterious, dark-suited figures who contact UFO eyewitnesses and warn them not to tell anyone else about what they know. These figures typically appear in groups of three and are usually assumed to be either government agents or shape-shifting space aliens in disguise.

The Men in Black supposedly visit UFO eyewitnesses and tell them not to reveal the existence of extraterrestrials.
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Benjamin Radford
Live Science Contributor
Benjamin Radford is the Bad Science columnist for Live Science. He covers pseudoscience, psychology, urban legends and the science behind "unexplained" or mysterious phenomenon. Ben has a master's degree in education and a bachelor's degree in psychology. He is deputy editor of Skeptical Inquirer science magazine and has written, edited or contributed to more than 20 books, including "Scientific Paranormal Investigation: How to Solve Unexplained Mysteries," "Tracking the Chupacabra: The Vampire Beast in Fact, Fiction, and Folklore" and “Investigating Ghosts: The Scientific Search for Spirits,” out in fall 2017. His website is www.BenjaminRadford.com.