America has a serious drug problem, but it's not the "meth epidemic" getting so much publicity. It's the problem identified by William Bennett, the former national drug czar and gambler. "Using drugs," he wrote, "is wrong not simply because drugs create medical problems; it is wrong because drugs destroy one's moral sense. People addicted to drugs neglect their duties." This problem afflicts a small minority of the people who have tried methamphetamines, but most of the law-enforcement officials and politicians who lead the war against drugs. They're so consumed with drugs that they've lost sight of their duties. Like addicts...