单项选择题

Is America losing the battle against teen drug abuse Despite years of anti-drug campaigns, drug use among American teens is increasing dramatically. Consider the statistics. The PRIDE (Parents’ Resource for Drug Education) survey of more than 140,000 students shows that the use of drugs by 11- to 14-year-olds is on the rise, with 11.4 percent of junior-high students reporting monthly use of marijuana (大麻), cocaine, or other illicit drugs. In a study issued last year by the National Centre on Addiction and Substance Abuse (CASA. at Columbia University, researchers found that drugs are more readily available and used by young people at a younger age than ever before.
The findings have sounded a national alarm and an ongoing debate about how to counter the disturbing trend. Last year, President Clinton called the dramatic increase in drug use among America’s youth : "the ultimate threat to the future of our country. "
Ironically, today’s teenagers are exposed to more drug education than any previous generation — the federal government has required public schools to teach drug prevention since 1987. The fact that drug use is still on the rise has caused policymakers, school officials, and parents to examine current drug prevention efforts.
While many parents call for more governmental and school intervention to tackle the drug problem, the PRIDE survey revealed that parental involvement plays a key role in teenage use. According to the survey, only 31 percent of parents give frequent warnings to their children about the dangers of drugs, but that these parental warnings can have a dramatic effect. Students who are given a clear set of rules reported 57 percent less drug use.

What is the best title for the passage（）

点击查看答案&解析