john felt that way. he survived the terrorist attack on the pentagon. john found a way to manage his post traumatic stress disorder and now helping others do the same. >> i can exhale, go forward, exhale and stand. >> this looks like your typical yoga class. students focussing on their classes, the teacher providing instruction. this isn't just any class. john isn't just any instructor. welcome to noon yoga at the pent don. >> your lips sealed spreading energy. >> it was in the family. a long history of my father,