Denver (AP) -- The Federal Bureau of Alcohol, Tobacco, Firearms,
and Explosives is warning gun dealers that it is illegal for
medical-marijuana patients to buy firearms. The agency sent out a letter September 21st that says marijuana use is still barred by federal law, even though it has been approved for medical use in Colorado. According to the Denver Post, people who use medical marijuana are required to declare it on their applications to buy firearms. Advocates say it's another attack on state medical-marijuana programs. Earlier this year, the Justice Department warned dispensaries they could face federal prosecution.