in the first year of the retina ministration, president reagan announced the nation's war on drugs. his wife nancy was involved in the just say no campaign. we have the establishment of the office you now hold. in those decades, i would wager this country has spent billions of dollars on drug education, introduction, prosecution, and yet drug usage rates continues to grow almost at an alarming rate. what are we to take away from that? guest: i think one of the things, not calling it a war would be quite helpful. it is both a public safety problem and very much a public health problem. and in dealing with it holistic play -- and president obama released his national drug control strategy a little over a month ago from the oval office, dealing with it hold mystically and a balanced way. it will probably have more effect in the long front -- long run. it is about prevention, education, and treatment, and it is also about the criminal justice system. host: to do it effectively, the policy community has to understand root causes. maybe that is what i'm getting at. what is the understandi