Is marijuana an innocent recreational pleasure and medicinal boon or an evil that must be outlawed to protect the American public? With the legal and social status of marijuana in transition, accurate and objective information regarding its use is necessary for informed decisionmaking in both the personal and political arenas. To distinguish truth from fiction, this book draws on scientific evidence from medicine, psychology, criminology, and sociology, exploring many of the most commonly held beliefs about marijuana and documenting the scope and impact of its use--and abuse--in the United...