Controversies related to the use of hallucinogens

Describe some of the controversies related to the use of hallucinogens. In particular, comment on the work promoted by MAPS the Multidisciplinary Association for Psychedelic Studies Web site for multidisciplinary studies in the area of psychedelics in regard to using MDMA for psychotherapeutic purposes related to post-traumatic stress disorder (PTSD). What significant practice issues do these controversies raise for you in consideration of your future work in the field?