THE QUIET PROFESSIONALS - In a rare chance to show America's elite Special Forces up close, 60 MINUTES spent over two months with a Green Beret unit as they trained a group of Afghan soldiers and then went into battle with them against the Taliban. Lara Logan reports. Jeff Newton is the producer. WHITE HOT - U. S. Snowboarder Shaun White, who took home the gold at the last Winter Olympics, is still the guy to beat as he shows Bob Simon some of the tricks he'll use next month in Vancouver. Tanya Simon and Andrew Metz are the producers. BEYONCE - Steve Kroft profiles the superstar singer on the road and backstage where she explains what makes her one of the world's most successful entertainers. John Hamlin is the producer.