What's the future of drug policy? An interview with America's 'Drug Czar'

Gil Kerlikowske is director of the White House Office of National Drug Control Policy (in more common parlance, America's "Drug Czar.") He was recently nominated to be commissioner of Customs and Border Protection. So this is an especially good moment to take stock of U.S. drug policies on several fronts. I caught up with Kerlikowske by e-mail. Below is our lightly edited exchange.