Shortly before nine in the evening, with just a trace of light left in the sky, several Adarand Constructors trucks stand in the left lane of Interstate 25 north of Monument Hill. A dozen workers -- evenly split between whites and Hispanics, and all wearing safety vests, goggles, hardhats and boots -- set up their floodlights, which illuminate a quarter-mile stretch of road with the intensity found at... More >>>