. >> reporter: joseph califano is now 80 years old, true washington insider. he was a former aide to lyndon johnson, cabinet secretary under jimmy carter. when he left government he found add public interest think tank devoted to fighting drug abuse. and in 2008, the same year we were buying our drugs online, the same year the woman south of seattle was buying hers online, joseph califano was writing to google telling their chairman and executive chairman, erik schmidt, that google was filled with prominent displays of ads for rogue pharmacies suggesting that google is profiting from advertisements for illegal sales of controlled prescription drugs online. google says it stopped the practice last year and it's filed lawsuits against some of the online drug advertisers, but califano says these sites appear and thin disappear, often overnight. >> i wrote to mr. schmidt and asked him, please, you have to look at what's going on. why are we having such an explosion in prescription drug abuse among teenagers and kids? but where do they get them? >> reporter: google

. >>> welcome secretary califano. >> nice to be with you. >> pleasure to have you with us. mel gibson was arrested in malibu, california not long ago and i'd like to know from you from your knowledge of the case, whether or not mel gibson was exhibiting signs, clear signs that he's an alcoholic. >> i think -- he was certainly exhibiting clear signs that he's an alcohol abuser. that he gets drunk and loses any inhibitions and lets the demons out. whether or not he is a full-blown alcoholic in the sense that he drinks so much so often that he can't function in his creative life, he can't function with his family, he can't function in day-to-day, or and that he drinks even though he knows it's badly hurting him in a whole variety of ways. i don't know the answer to that. only the people who are treating him know that. exactly arnks abusers as well as alcoholics need treatment, they need help. >> we can't move that definition into a little bit more precision perhaps because there had been thought that to be an alcoholic it goes beyond problem drinking. to be an alcoholic you ha