Texas Drivers Stopped At Roadblock, Asked For Saliva, Blood

schwit1 writes "Some drivers along a busy Fort Worth street on Friday were stopped at a police roadblock and directed into a parking lot, where they were asked by federal contractors for samples of their breath, saliva and even blood. It was part of a government research study aimed at determining the number of drunken or drug-impaired drivers.The National Highway Traffic Safety Administration, which is spending $7.9 million on the survey over three years, said participation was '100 percent voluntary' and anonymous. The 'participants' hardly agree."