Grow-ops in national parks

In the post at MM (see below), I get the not-so-new news that national parks are prime growing grounds for drug cartels

"This is massive-scale agriculture that is threatening the very mission of the national parks, which is to preserve the natural environment in perpetuity and provide for safe public recreation," says Bill Tweed, chief naturalist at Sequoia National Park. "[Growers] are killing wildlife, diverting streams, introducing nonnative plants, creating fire and pollution hazards, and bringing the specter of violence. For the moment, we are failing both parts of our mission, and that is tragic."

I lean towards libertarianism when it comes to drug use (particularly marijuana) -- but as a mildly-crunchy conservative, this really pisses me off. Next time I see some ecologically-minded peacenik toke up, I'll be tempted to punch him in the face.