Spate of Drugged Driving Deaths Alarms U.S. Regulators

In 2015, 21% of the 31,166 fatal car crashes in the U.S. involved at least one driver who tested positive for drugs after the incident, a number that could be even higher since not all drivers involved in crashes are tested for drugs. Currently, all states punish drivers for blood-alcohol concentration at or above 0.08% but there is no standard level of impairment or field sobriety test for marijuana. A recent University of Iowa study however, has shown drivers with blood concentration of 13.1 ug/L of THC, the main active ingredient in marijuana, showed driving behaviors such as weaving similar to those with 0.08 BAC. With the recent legalization of marijuana in 5 more states, what might this mean for the safety of our roads? Read more: http://www.usatoday.com/story/money/2016/10/27/drugged-driving-dui-nhtsa-auto-safety/92678186/