If our government would allow all states to legally grow and sell marijuana and the sales stay steady which it looks like they will or be rising, the taxes from the sale of recreational marijuana would help pay our national debt off in no time flat.
Then they can regulate sales like the (ATF) Bureau of Alcohol, Tobacco and Firearms does. All they have to do is add an M to ATF making it ATFM for Alcohol, Tobacco, Firearms and Marijuana.
By legalizing and taxing all the states, the government would be making more tax money on sales and spending less money on trying to catch people who sell unlawfully. Non-smokers of tobacco or marijuana would not be effected by these new taxes.
Also by legalizing recreational marijuana people who have legitimate medical reasons for using marijuana but were denied prescriptions by their primary care physicians would also be able to buy it for their personal medical use lawfully.
Marijuana is used for (PTSD) Post Traumatic Stress Disorder, pain management, Glaucoma, and Migraine headaches. For a list of the top 10 medical uses for marijuana go to: Medical Use of Marijuana