Shauna "Doc" Springer is a psychologist who has worked for a long time with veterans on their posttraumatic stress and has written extensively about the subject, including in her book, Warrior: How to Support Those Who Protect Us . In this encouraging conversation she covers a lot of ground, but chiefly an emerging practice that alleviates PTSD (or, more accurately, PTSI) with a simple anesthetic injection and some outpatient talk therapy.