There has been an increase in the number of highway crashes in 4 of the states where the recreational use of marijuana has been legalized

There has been an increase in the number of highway crashes in 4 of the states where the recreational use of marijuana has been legalized, according to a pair of new studies. https://t.co/0v4DupJRB7

— NBC News (@NBCNews) October 20, 2018

Source: Twitter