Thank you for asking for clarification because I can see where the logic would be elusive. In terms of the drug interdiction methods, it has meant that, as Dr. Diane Riley predicted, more severe drugs--heroin, cocaine, PCP, and dangerous drugs as well--were being introduced in order to make it easier to conceal, both in terms of masking drugs and for getting drugs into the institution. This is versus marijuana and hashish, which are actually bigger and harder to get into the institution yet are seen as not having the same potential impact.
That was what I was referring to when I talked about making it worse, because I think it's far worse to have an addiction to a more dangerous drug. The numbers, I would agree with Catherine, have never been huge, but the interdiction methods have a huge potential impact on the entire population, their families, the community, and for all of us who go into the institutions.