A couple of the other Meltdowns are standing around smoking cigarettes, holding them between two fingers in the Slavic style, like darts. They stomp the cigarettes out on the concrete with their cheap vinyl shoes, run up to the Vanagon, and begin to haul out the sound equipment. Vitaly puts on goggles, hooks himself into a computer on the sound truck, and begins tuning the system. There's a 3-D model of the overpass already in memory. He has to figure out how to sync the delays on all the different speaker clusters to maximize the number of nasty, clashing echoes.