The ISN, on one of its recent podcasts, scored a very good (if too short) interview with Professor Arthur Hulnick (see picture at right). Art currently teaches intelligence related courses at Boston University and has for a number of years. Before that he was at the CIA for several decades and has contributed significantly to the open body of literature on intelligence through his books (including Keeping Us Safe: Secret Intelligence and Homeland Security (2004) and Fixing the Spy Machine: Preparing American Intelligence for the 21st Century (1999)) and many articles.
Art is one of those guys who has been around, as we used to say in the army, "since Christ was a corporal" and is always worth listening to. Unfortunately, the ISN did not make an embeddable version of the podcast but you can get it on iTunes, download the MP3 or just go to the ISN site to listen to it.