The lead-up to the July 4th holiday is already the busiest in history. Airline travel is up by more than five percent compared to last year. TSA expects Friday to be the peak travel day. If you're taking a road trip, expect heavy traffic. Over 60 million people are expected to be driving over the 4th of July weekend. Travel expert Pauline Frommer says the worst time to drive is in the afternoons anytime during the week of July 4th.
