Get High and Deworm Your Opossum at the Same Time

This is interesting:

“Cocaine’s a hell of a drug, and even more so when laced with another drug that’s commonly used to deworm opossums. Federal agents have found that 69 percent of cocaine shipments seized entering the United States contain levamisole, a veterinary drug linked to serious weakening of the immune system in humans. Here’s the real funny part: no one knows why.”

Could it be that people who smuggle cocaine into the country don't really have our best interests at heart?