Tangent: G4S, and their predecessor Securicor, should win some kind of award for cyberpunk-esque corporate branding. A nebulous private security company named as an inscrutable 3-letter code (now), or as the very generic "Security Corporation" (then) are both pretty good. Also, the former slogan, "Securicor Cares".
G4S were also involved, before they got the contract, in the bid for the Olympics.
Pretty sleazy.