Between 1978 and 1995, sixteen mail-bomb attacks were attributed to “the unabomber,” socalled because the victims were often associated with universities. Theodore Kaczynski was arrested at his home—a hand-built cabin in the Montana Rockies—after his brother recognized the style of an anti-technology manifesto which the unabomber had written, and which the FBI had persuaded newspapers to publish. Although his ability to elude police for almost two decades made him a minor folk hero, his most lasting effects on daily life were the identification practices instituted at post offices during his time at large.