From coast to coast, national parks, national forests, and state parks are being crowded, if not overrun at times, by visitors.  One part of the country that has seen record-breaking visitation has been the Outer Banks of North Carolina, where Cape Hatteras National Seashore, Fort Raleigh National Historic Site, and the Wright Brothers Memorial combined welcomed nearly 4 million visitors last year. National Parks of Eastern North Carolina Superintendent Dave Hallec discuss that record visitation, and risks to ocean-front homes at Rodanthe.