"What a Scientist suggests you tell your kids about legal marijuana" PBS NewsHour 7/21/2017

Excerpt

SUMMARY:  With marijuana legal in some form in 26 states and the District of Columbia, the old script for talking to your children about pot is changing.  Behavioral scientist Elizabeth D'Amico, who has researched drug and alcohol use among teens for more than 20 years, giver her humble opinion about what kids need to know.