The federal government has issued a warning to 23 medical marijana shops in Colorado: shut down in the next six weeks.
Education News reports that the dispensaries notified by the federal government are within 1,000 feet of schools.
If they do not shut down, they face federal prosecution.
Federal authorities are working to identify all the shops that are near schools, and officials say the round of letters is only the first step.
Read more at Education News.