[robertpaulsen]

"Why doesn't the federal government just decriminalize marijuana possesion (importing it or transporting across state lines could still be illegal)?"

First, I think you mean "legalize" not "decriminalize". Decriminalization means that marijuana is still illegal, but the offense is reduced to a civil misdemeanor with usually a small fine. Some states have decriminalized.

You're looking to turn the legalization decision over to the states and leaving the federal government out of it (unless, as you say, it crosses our borders or state lines).

The 21st amendment, Section 2, did exactly that for alcohol. I would suggest that we get a similar amendment for drugs if we want to go down that path.

[Durus]

The 21st amendment reversed the 18th amendment. What amendment would your suggested amendment be repealing?
Seriously, are you suggesting that we pass an amendment removing a power of the (federal) govt. when that power isn't even enumerated in the first place? Have you any idea how dangerous of a precedent that would be?

[Jackknife]

The 21st amendment, Section 2, did exactly that for alcohol. I would suggest that we get a similar amendment for drugs if we want to go down that path.

This is true, because , as you stated, some states have already decriminalized it. IMO, prohibition on MJ doesn't work , in the same way that it did not work for alcohol.