theodp writes: Sunday marks the 20th anniversary of the Arrest of Theodore Kaczynski, aka the Unabomber, at his cabin in rural Montana. Kaczynski, a brilliant mathematician turned recluse, spread destruction and death throughout the U.S by mailing bombs to his victims, most of whom worked at UNiversities or in the Airline industry -- hence the "UNAbomber" moniker -- from 1978 until his arrest in Lincoln, MT, on April 3, 1996. For years, the only clue to his identity was a single now-iconic sketch of a shadowy, hooded figure. The big break in the case came in 1995, when David Kaczynski recognized the ramblings of the Unabomber's 35,000-word anti-technology manifesto entitled Industrial Society and its Future, which was published in the Washington Post, as those of his older brother Theodore and tipped off the FBI. (Kaczynski warns of a world of intelligent machines where "the fate of the human race would be at the mercy of the machines.") Kaczynski, now 73, is currently serving a life sentence without parole at the so-called Supermax prison in Colorado. Kaczynski's listing in the Harvard alumni directory for the class of 1962 gives his occupation as 'prisoner' and cites "eight life sentences, issued by the United States District Court for the Eastern District of California, 1998" in the awards section.

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