I don't think there's a single child who's ever benefitted from being arrested for marijuana or for underage drinking; this does not solve the problem. It makes worse problems because a) it puts them into the system, and b) it gives them a potential criminal record to have to deal with and it can have consequences for school.

A lot of addiction actually ends by age 30 - something like 50 percent of all addictions with the exception of tobacco - and I think a lot of what's going on there is that the self-control areas of the brain are finally developed enough to be able to stop yourself from relapsing or just continuing. There is a maturational aspect to it as well.

The best outcomes that are seen for therapy intervention and for other psychological interventions is where the therapist really connects and the person really feels understood. That matters often even more than the technique.

The thing we want for all our kids is that they be connected with a learning community and that they have strong social and familial relationships. If we can do whatever we can do to create that and to reduce bullying and to reduce the kind of pain and shame so many kids feel for so many reasons, that stuff is going to reduce drug addiction.

In a criminal justice setting, it's very hard to create a therapeutic environment where people do feel safe, but the real important thing to do is to do your best to do that.

Drug warriors' staunch opposition to needle exchanges to prevent the spread of HIV in addicts delayed the programs' widespread introduction in most states for years. A federal ban on funding for these programs wasn't lifted until 2009. Contrast this with what happened in the U.K. At the peak of the AIDS epidemic in the mid-1990s, the HIV infection rate in IV drug users in the U.K. was about 1%. In New York City, the American epicenter, that figure was 50%. The British had introduced widespread needle exchange in 1986. That country had no heterosexual AIDS epidemic.

I don't have kids, but I've often noticed when people first become parents they seem to completely forget their own adolescence and they start to, as their kids become teenagers, try to do the things that didn't stop them themselves. And I jokingly frame this as: Your brain gets wiped of those memories when you become a parent.