Attorney General Jeff Sessions is rolling back an Obama-era policy that allowed marijuana use to become legal in states across the country. Instead, the Justice Department will let federal prosecutors in those marijuana-legal states decide how aggressive to be in their prosecution of marijuana law.
In 2013, the Obama administration announced it would not challenge states that moved to legalize marijuana, as long as officials kept it from being shipped to places where it remained illegal and out of the hands of criminal gangs and children. Sessions has rescinded that memo and that is likely to lead to confusion on the part of states as federal law still prohibits marijuana use.