Mexican Drug Cartels

It appears that Mexican President Calderon is conducting a crackdown on the drug cartels that rule a part of his country. It’s also clear that whatever it is that he’s doing is having no effect. Bottom line, the druggies will continue to run their armed invasions into the US whenever they feel like it (daily)–because the US government is not interested in securing our border. It does raise the question–how drug cartels can operate freely when two governments are, at least nominally, out after them.