Bomb plot foiled in Colombia - Authorities find five cars packed with explosives
Houston Chronicle ^ | December 12, 2002 | Reuters News Service
Posted on 12/12/2002 1:35 AM PST by Cincinatus' Wife
"The cars, each packed with at least 550 pounds of explosives, were rigged with remote control devices that would allow the bombers to guide the vehicles to targets, which, the police said, included their headquarters and a bus station."
http://www.freerepublic.com/focus/news/805150/postsThese are not remote controlled. They drive themselves without any human intervention. Use GPS signals and onboard computers.