Drug Use in Mexico

http://www.nytimes.com/2007/10/03/world/americas/03addicts.html?ref=americas

In the past, Mexico has not had a huge drug problem- drugs on their way to the US from other Latin American countries would pass through, but Mexico itself didn't have a large number of users. In the past few years however, the situation has changed. The above article, from the New York Times, has stories of towns in Mexico where crack houses are operating alongside small grocery stores and the like and people sell drugs on every corner. There are rehab centers everywhere- and usually they're small houses with one bathroom that about 30 users are locked into for 3 or so months.
I also read that Colombia's drug use has gone down (a country stereotyped by its drug use). Will Mexico take over that stereotype and become "the new Colombia" in the years to come? Hopefully not....