A contributing factor to this increase is that retailers are not asking to students to show proof of age, a tactic that has been shown to be the best way to prevent illegal tobacco sales to minors. Other plans to reduce teenage smoking will need to consist of reforms to reduce teen-age demand for them. Encouragingly, the use of chewing tobacco and other smokeless tobacco products has levelled off.
Source: "Increase in Teen-Age Smoking Sharpest Among Black Males" by Barnaby J Feder, New York Times, May 24, 1996