Pubdate: Sat, 09 Aug 1997 Source: Dallas Morning News (TX) Author: Greg Goldmakher Two points in regard to your July 2 editorial, "Marijuana Impact - New studies make some troubling discoveries." First, the science is shoddy. The fact that marijuana raises dopamine levels just like cocaine and heroin do says absolutely nothing about its likelihood to lead to the use of other drugs. Anything that causes pleasure does the same thing. Chocolate has been shown to do the same thing. Is chocolate, then, a gateway drug as well? Furthermore, the conditions used in the studies reported are completely unrealistic, and no conclusions can really be drawn from them which apply to real use of the drug. The scientists who wrote the articles acknowledge that there is no basis in these studies for the gateway hypothesis, but the press, including your paper, seems to be acting as if there were. Second, whether or not marijuana is dangerous, criminal prohibition of this substance is impractical and unjustifiable. If we wished to prohibit all that is dangerous, we should be banning skydiving, cigarettes, fatty foods and many other things. Prohibition failed with alcohol, and it is failing now with marijuana. How dangerous the drug actually is has no relevance to this. Greg Goldmakher Dallas