The president directly blamed the United States.

"The origin of our violence problem begins with the fact that Mexico is located next to the country that has the highest levels of drug consumption in the world," Calderón wrote. "It is as if our neighbor were the biggest drug addict in the world."
Yeah well. Calderón, your people are the biggest drug dealers on the planet. For what it's worth, that doesn't exactly give you any purchase for claiming the moral high ground. Suck it up, pal. Your countrymen's drug dealing ways are killing a hundred million people around the world. And your willpower to destroy the criminals in your midst doesn't exist. Deal with that.

It all begins with the fact that the stuff is addictive. That's where it begins. Where it ends is ugly, in the gutter. The middlemen? Your countrymen, Calderón.