There's likely already a lot of greased palms at he Federal level. Seems like legalizing it would do great things, but you have to realize how many departments would get funding cut at every level and the cartels would lose a source of revenue. I'm not sure our .gov is willing to put our poor southern neighbors out of work until we can get them all here.There is apparently so much money in the pot business. I'm shocked lobbyists have not greased the right palms and gotten it legalized at federal level.
But I will look in a murky crystal ball and predict this much:
If it does get legalized, then the federal government will start regulating pot in the name of public safety (like the alcohol industry is) and the business will be dominated by a couple of big industry players that don't like competition.