Illegal drug use by adolescents is on the rise. This alarming trend was quantified in this national survey of the attitudes of teens and their parents (1,200 teens and 1,166 parents, including 819 sets of teens and parents from the same households) towards cigarettes, alcohol, inhalants, marijuana, LSD, cocaine, heroin, and other illegal drugs. The survey focused on the various situations which may place teenagers at risk for illegal drug use, with the highest point of risk occurring during adolescence. Survey findings indicate that illegal drugs remain the most serious problem teenagers face, in their own estimation, as well as that of their parents. The percentage of teenagers who say it is likely they will try an illegal drug in the future is 22%, twice the 11% found in a survey conducted the previous year. Responses show that by the time they reach age 17, youth are surrounded by illegal drugs in their schools, in their neighborhoods, and among their friends. More than 70% of 15 to 17 year olds, and more than 70% of teenagers' parents believe that drugs are used and sold at the high schools the children attend. Strategies for helping teens resist drugs are highlighted throughout the report. Parents' responsibilities and characteristics of teens least likely to use drugs and are also detailed. (RJM)