MADD (Mothers Against Drunk Driving) has been very successful over the past two decades in using their considerable influence with legislators and federal agencies to get new laws passed designed to curtail or eliminate drunk driving.  Among these have been dropping the blood-alcohol level to .08%; per se laws (illegal to drive with over .08% [...]

Read the complete post at http://www.duiblog.com/2009/12/11/will-ignition-interlock-devices-end-drunk-driving/