Links
[1] http://seattle.cbslocal.com/2014/02/04/study-fatal-car-crashes-involving-marijuana-have-tripled/
[2] http://rethinkpot.org/tags/car%2A
[3] http://rethinkpot.org/tags/study
[4] http://rethinkpot.org/tags/washington
[5] http://rethinkpot.org/tags/fatalities