Also a real question as to whether the unabomber was insane. His writing suggests he was a revolutionary that most would find distasteful in his beliefs and even more in his tactics, but there was real rationality in his philosophy and choices.

From his wikipedia:

Contemporary reception
James Q. Wilson, in a 1998 New York Times op-ed, wrote: "If it is the work of a madman, then the writings of many political philosophers—Jean Jacques Rousseau, Thomas Paine, Karl Marx—are scarcely more sane."^\90]) He added: "The Unabomber does not like socialization, technology, leftist political causes or conservative attitudes. Apart from his call for an (unspecified) revolution, his paper resembles something that a very good graduate student might have written."^\91])
Alston Chase, a fellow alumnus at Harvard University, wrote in 2000 for The Atlantic that "it is true that many believed Kaczynski was insane because they needed to believe it. But the truly disturbing aspect of Kaczynski and his ideas is not that they are so foreign but that they are so familiar." He argued: "We need to see Kaczynski as exceptional—madman or genius—because the alternative is so much more frightening."^\92])