During the lazy, long, hot days of summer, which activity would you rather see your son or daughter engaged in – playing a video game or reading a book? A silly question, right? After all, nearly every parent will say, "Reading a book." But whether that's truly the better activity depends on what book your child is reading. And as I've told readers of this column before, plenty of books designed for today's pre-teens and teenagers undermine the traditional moral values most parents struggle to teach their children. This time of year, kids of all ages come home with...