When Ted Kaczynski’s manifesto appeared 30 years ago, the internet was brand-new. Now his dark vision is finding fans who don’t remember life before the iPhone. Credit...Photo illustration by ...

Before he became the Unabomber, Theodore J. Kaczynski was a gifted mathematician. Raised in and around Chicago, he went to Harvard on scholarship at age 16 and, in 1967, became the youngest ...