Ready to travel this summer? Experts say it will be busy

(CBS) Millions of Americans are preparing for their annual vacations as the Transportation Security Administration predicts this will be the busiest summer travel season ever.Compared to last summer, flight prices are down, while hotel room rates are up, and demand is expected to be heavy. “I think travel will be up in the mid-single digit range and I think the airlines will continue to see very heavy traffic,” said Priceline CEO Brett Keller, adding that flight and rental car prices