If it is the responsibility of the government to protect its' people from the dangers of drugs, which currently it is in the US, they are failing in this responsiblity because you've got a lot of people out there regularly on something.
The government could certainly stand to make a lot of money via taxation of drugs if such a practice were to become regulated. McBane touched on the sensitive issue where how does one draw the line on such an enterprise when it can have a direct effect on others in a dangerous sense. We see this all the time with alcohol and all the documented drunken driving, and consequently you've got people out there driving automobiles on LSD, PCP, cocaine, heroin (drive the speed limit, please

), and any other narcotic.
Amsterdam seems to have their ways of regulating hashish, thus it is plausible other governments could do the same. Here, in the US, the war against drugs has been such a heavy issue for so long, it would be odd to see them go the other way.
I have no problem whatsoever with the legalization of just about any of them. If people want to use, they're going to take them whether they are legal or not. They already do, in abundance. The only problem with legalizing a lot of the hard stuff, hell even the mild stuff, is that now the government is encouraging people to burn out.
Still, the use of drugs all comes down to the individual. It's a matter of will power. When I was in college, I dabbled with all kinds of stuff, however, I never let it interfere with my studies. Education came first, as it should, but this is not the case with everyone. I saw a lot of friends become a little too friendly with certain drugs and it began to affect their daily life. So, how can a government regulate, if not encourage, practices and activities that are going to be degenerate to everyone and in some cases, change their lives. We see it every day with alcohol and to throw a series of other chemicals into the mix seems to only be destructive. Again, I say only support such legalization from my own perspective and experiences.
btw CE, I always thought abbie stumbled onto the old lysergic before 1948.
Crush enemies, see them driven before you, and hear the lamentations of the women.