Borderline Personality Disorder (BPD) when described on the show initially had me thinking that it could cover nearly everybody who is feeling unhappy. Fortunately the interview clears all that up, step by step, bit by bit. All in all I think this is a great issue of Wise Counsel for psycho therapy practitioners. As a layman, I had a bit of trouble keeping up with the jargon.
The interviewee, John Clarkin, is nevertheless going to great lengths opening up the field. He lays out the definition of BPD and summarizes the symptoms. The major part of the conversation is about the treatment. Clarkin has come up with a standardized and tested treatment that has promising results. In spite of insufficient funding results are had, not just in his local New York, but also in Canada and various places in Europe.