Travel Watch: 42 million Americans planning to take a road trip for the 4th of July

A record number of Americans are expected to travel this upcoming July 4th holiday weekend, per a new report from AAA. Drivers should prepare for increased traffic as 42 million people take to the road for trips of at least 50 miles. CBS News transportation correspondent Errol Barnett joins "CBS News Mornings" with details on what to expect.