The folks at World's Finest Chocolate have a created the world's largest chocolate bar.  It weighs 6 tons, is almost 3 feet high and 21 feet long. The bar was reviewed by a judge from the Guiness Book of World Records and is now on a cross country tour of schools.  It's part of the company's "Think Big, Eat Smart" campaign.  The bar would provide 209,000  1 ounce servings- enough for every fan in Chicago's Wrigley Field, U.S. Cellular Field, Soldier Field and United Center and still have 45,000 leftovers.  Where does the line start?