Ted Kaczynski did a mail bomb campaign.
 Kaczynski replied Penthouse was less "respectable" than The New York Times and The Washington Post, and said that, "to increase our chances of getting our stuff published in some 'respectable' periodical", he would "reserve the right to plant one (and only one) bomb intended to kill, after our manuscript has been published" if Penthouse published the document instead of The Times or The Post
 The essays were given to an anonymous individual who would confront and belittle the subject in what Murray himself called "vehement, sweeping, and personally abusive" attacks, using the content of the essays as ammunition

