 will head 50 miles or more from their homes over a nine-day Independence Day travel period. And the Transportation Security Administration expects to screen over 32 million flyers from tomorrow through July 8th. That's up nearly 5.5% from last year. If you're traveling by car, it's best to hit the road in the morning. The transportation data company, Inrix, says peak traffic congestion varies by location, but the worst times to drive on...