Source Materials

Source: FBI report 265A-NY-802 on Al-Qaida bomb engineer Ramzi Yousef (1996)

Case study 1: Casio nitro bomb trigger

Bomb trigger circuit based on the famous Casio F91-W quartz watch, designed by Ramzi Yousef, one of the 1993 WTC bombers.

Collection of the Military Museum Belgrade, Serbia.
Photo: Dani Ploeger

Case study 2: Pager system detonator

Remote trigger made with a modified Radio Shack wireless pager system, developed by guerilla fighters of the Kosovo Liberation Army in 1999.

Photo: Imperial War Museum

Case study 3: Electronic incendiary device

Incendiary device with electronic timer system developed by the Provisional Irish Republican Army for the 1993 bombing campaign.