But if a FBI man or ATF man or any Fed sees you trying to get more than a mile high in Denver, can that Federal agent bust you?
As for the drug cartels lining up to pay taxes. Why? They have their own supply lines, and they take 100% of the profits. Comparing to Prohibition is comparing a prune to an apple. The bootleggers where running crap, and at times, crap that could kill you or blind you. Why buy it, when the good stuff was now available again?
FYI, years ago the EVIL tobacco companies registered names for marijuana, should THE FEDS ever make it legal.
"No man's life, liberty, or property is safe, while Congress is in session." Mark Twain