Potent pot, vulnerable teens trigger concerns in first states to legalize marijuana - The Washington Post

The first two states to legalize recreational marijuana are starting to grapple with teenagers’ growing use of highly potent pot, even as both boost the industry and reap huge tax windfalls from its sales.....
https://www.washingtonpost.com/national/potent-pot-vulnerable-teens-trigger-concerns-in-first-states-to-legalize-marijuana/2019/06/15/52df638a-8c9a-11e9-8f69-a2795fca3343_story.html