A meme a "contagious idea." See www.memecentral.com/; and see more books on it.
A meme is an idea that can replicate and evolve; a bit of cultural information that spreads and can be changed and adapted in the new setting; an idea or behavior pattern that is "caught" and spread by imitation. See, for example, //thedailymeme.com/what-is-a-meme/. The term originated in 1976, says the site, and more detail is there, and identification of books.
Meme of the day: A punitive focus against users is ineffective. Companion memes: A medical-educational approach is effective. A punitive approach is effective as to dealers.
The word is spreading, from California to New England. See Hartford Courant today, 10/16/07 at Op-Ed page A9. This is a reprint of a Los Angeles Times piece by Traveliste Rick Steves, "Europe Wages Selective War On Drug Use." Read it at www.courant.com/news/opinion/op_ed/hc-steves1016.artoct16,0,5960624.
The Netherlands. Further meme. Cultural approaches to drug use, drug culture, and use effect management, can be structured for the common good, rather than for the satisfaction of punishment pushers.
Adapt the idea for yourself: Start with an analysis of which countries are already using that approach, with what results, and ask if the US can clamber out of the hole of putting users in jail for it. You may find that The Netherlands and much of Europe see drug use as an illness, not a crime. They send in the cops against dealers. They send in the medical and educators for users and anti-drug ed. It works. Find (if your research corresponds to that of Rick Steves) no significant increase in marijuana use by young people, only a slight increase in the overall population.
It is more fruitful to focus on the hard stuff, not pot. Europe has made a choice, and put their money and minds there. Rick Steves' closing sentences - "European leaders understand that a society has a choice: Tolerate alternative lifestyles or build more prisons. They've made their choice."
Go there. I believe Rick Steves is right.