• COVER: Mandela: His 8 Lessons of Leadership - As he celebrates his 90th birthday, the world's greatest moral leader reflects on a lifetime of service • SOCIETY: The Truth About Plastic - It's in just about everything--which may be harmful to you and the planet. • ARTS & ENTERTAINMENT: Batman Is Back - The new Batman epic is a violent, masterly weave of madness and dread • TECHNOLOGY: Post Apocalypse - The Web needs commenters. But are they ruining the Net faster than they can save it?