Since 1993, laws in all 50 states put ignition interlock systems in the cars of some drunken driving offenders. If the device detects alcohol on a driver's breath in excess of the legal limit, the vehicle will not start.
원문출처 : http://www.cnn.com/2017/01/06/health/ignition-interlock-laws/index.html
원문출처 : http://www.cnn.com/2017/01/06/health/ignition-interlock-laws/index.html