Summer in America

School's out, the weather's warmer, and Americans are on the move. Many a car will be seen on our highways stuffed with bikes, coolers and beach balls. But, can Americans find it in their frenzied nature to really relax and do nothing? We'll look at the American tradition of summer vacation and how that's changed over time. Laura's guests are Amy Willard Cross, author of Summer in America, and Cindy S. Aron, history professor at the University of Virginia and author of Working at Play: A History of Vacations in the United States.