"Throughout the late 1970s and early '80s, dozens of Japanese citizens were abducted from coastal Japanese towns by North Korean commandos. In what proved to be part of a global project, North Korea attempted to reeducate the abductees and train them to spy on the state's behalf. When the project faltered, the abductees were hidden in a series of guarded communities known as "Invitation-Only Zones"--the fiction being that these were exclusive enclaves,...