Yet another illegal drug proves its medical benefits. Psilocybin has been shown an effective treatment for some people suffering from Obsessive Compulsive Disorder. Psilocybin, or "Magic Mushroom," is a commonly used hallucinogen which greatly influenced thinkers like Terrance McKenna and is an important sacrament for many aboriginal Americans. This relatively safe substance should be decriminalised the world over along the Dutch model. Additional funding should be granted to studying the potential medical uses for this and other criminalised substances.
New Scientist article on Psychedelic Medicine.