Survey research on levels of use and attitudes toward marijuana by youth indicate a consistently favorable attitude toward occasional, moderate use. Use of marijuana is contrasted with the use of alcohol and tobacco by youth. Research findings re the dangers of marijuana use are summarized. The inability of legislators and law enforcement personnel to control access to and use of marijuana, coupled with the high cost of our present legal response to the marijuana challenge, leads to recommending the legalization of marijuana, as well as, developing a generic primary prevention program for marijuana abuse which features distinguishing“responsible use”from“abuse.”Criteria for judging marijuana abuse are provided.