By Catherine Saint Louis and Matt Apuzzo | The New York Times
The Obama administration is planning to remove a major roadblock to marijuana research, officials said Wednesday, potentially spurring broad scientific study of a drug that is being used to treat dozens of diseases in states across the nation despite little rigorous evidence of its effectiveness.
The new policy is expected to sharply increase the supply of marijuana available to researchers.
Related: Marijuana to remain illegal under federal law, DEA says