Melissaa Hoffman News Today

The steady rise in the use of cannabis — 18 states have legalized recreational use, 13 have decriminalized its use and 36 have medical cannabis laws — has

The largest study of its kind shows approximately 50 percent of drivers could be considered impaired.

The steady rise in the use of cannabis — 18 states have legalized recreational use, 13 have decriminalized its use and 36 have medical cannabis laws —