Traffic fatalities up

I wonder if it is marijuana? More people texting? Both?

“The nation lost 35,092 people in traffic crashes in 2015, ending a 5-decade trend of declining fatalities with a 7.2% increase in deaths from 2014. The final data released today by the U.S. Department of Transportation’s National Highway Traffic Safety Administration showed traffic deaths rising across nearly every segment of the population. The last single-year increase of this magnitude was in 1966, when fatalities rose 8.1% from the previous year."

 https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/812318