Report: US health authorities need to play larger role in cannabis policy 

FILE - A marijuana plant is seen at a medical marijuana dispensary in Egg Harbor Township, N.J., March 22, 2019. A scientific panel is recommending a larger role for the Centers for Disease Control and Prevention in cannabis policy.

With more Americans using ever-stronger marijuana, a federal advisory panel is calling for a public health approach that's a big departure from "Just Say No."