There's a new attraction for thousands of people enjoying the long holiday weekend on North Carolina's Outer Banks. Shelly Island is a destination you won't find on a standard map. The giant barrier island suddenly formed in the Atlantic Ocean, almost overnight. CBS News correspondent Mark Strassmann reports the mile-long island, which measures as wide as a football field, has attracted hundreds of tourists by boat for the Fourth of July. Pilot Larry Ihler told Strassmann the island "has definitely gotten bigger" and is "more built up." Strassmann set out by kayak on Monday to explore Shelly Island with County...