Ted Kaczynski carried out a campaign.
Ted Kaczynski . A mathematical prodigy , he abandoned a promising academic career in 1969 , then between 1978 and 1995 killed three people , and injured 23 others , in a nationwide bombing campaign targeting people involved with modern technology . In conjunction with this campaign he issued a wide-ranging social critique opposing industrialization and modern technology , and advancing a nature-centered form of anarchism . Seventeen years after beginning his mail bomb campaign , Kaczynski sent a letter to The New York Times on April 24 , 1995 and promised `` to desist from terrorism '' if the Times or The Washington Post published his manifesto , Industrial Society and Its Future ( the `` Unabomber Manifesto '' ) , in which he argued that his bombings were extreme but necessary to attract attention to the erosion of human freedom necessitated by modern technologies requiring large-scale organization .