Powerful video. Makes clear that the "war" on drugs is unwinnable as long as the market and the guns are available on the U.S. side. Surprising to me: it's the huge profit margins on sales of marijuana that support the less profitable (but deadly in its consequences) cocaine trade. This suggests to me that legalizing marijuana (and thus being able to control its distribution, like tobacco, and of course decriminalizing it) might be a very effective way to weaken the drug "cartels" and make violence unnecessary and unattractive for business.
War Without Borders: Fueling Mexico's Drug Trade - The New York Times