The bad news is that Americans' appetite for heroin and meth is growing. And the cartels are more than happy to satisfy that need for smack and speed.
One of the anticipated benefits of marijuana legalization was the blow against the Mexican drug cartels since a legal product would certainly hurt a business that depended on tunnels, mules, hidden compartments, high speed boats, lots of workers willing to risk capture, and a complicated detection avoidance system. Also, the quality of the domestic pot is reportedly better than Mexican weed.
It was also easy to anticipate an increased emphasis by the cartels on drugs that were still illegal. LATimes.com: "High demand for heroin in the U.S. has been driving up prices, and there is little chance it will be legal any time soon."
"High demand for heroin" is never a good trend, and reducing that demand would be a good thing for everyone. Ah, but that's the problem, isn't it? Some people need a way to escape their own minds. But for those people there's no escape from the problems created by some of the choices they make.