The УpowerwallsФ are tumbling down. Convenience stores will now have to keep their tobacco products out of sight. The move is to protect youngsters from being bombarded with a dramatic cigarette display every time they walk into the corner store. According to those responsible for banning open displays of tobacco products in convenience stores, the cigarette powerwall, positioned beside the candy and gum, is a powerful sales tool aimed right at young kids. Most parents understand how gullible little kids are. We know where our little ones get their ideas for their Christmas УwishФ lists Ц Saturday morning television shows. Tobacco companies have been banned from advertising their products by sponsoring such programs. In fact, those powerwalls are about all they have left as an advertising tool, and they are making the most of them. While fewer people than ever are smoking, the number of teenagers in Ontario who smoke remains disturbingly high, about 18 per cent, according to the Heart and Stroke Foundation. The same studies indicate about a third of adult smokers took up the habit when they were under 12 years old, and by the time they hit high school, more than half of our kids have tried cigarettes. Something must be done to cut those numbers. Those opposed to the ban on powerwall discount cigarettes advertising say it is time for a reality check.