In the stifling post-boxing match Las Vegas traffic jam, a new black 1996 BMW inched along impatiently, it's gold detailing glimmering brightly under the street lights. Any attempt to catch a glimpse of the passengers within the tinted windows revealed only a distorted reflection of the chaotic, yet relatively motionless urban scene. The glass sunroof slid open and a dark figure rose partly through the opening, like a tank commander surveying the horizon for signs of the enemy. Discreetly the rear window of a nearby car rolled down as it ap ....