Countermeasures prompted hijackers to demand nude money couriers.

Evidence

The first hijacker to try it was overpowered by the money courier, who was an FBI agent. This led to further refinements of the hijacking-extortion procedure. Hijackers insisted that the money couriers be nude! — Albert Bandura, Moral Disengagement, 759

Categorization

• CANDY: The image of hijackers demanding nude money couriers is a bizarre, elevator-worthy tidbit about the arms race between security and crime.