 It's a nice consumer alert. Americans are spending a lot of time and money traveling. More than 3 million U.S. travelers soared past another record Sunday for the first time ever. The Transportation Security Administration says that agents screened 3,013,413 passengers at airport checkpoints. The end of the July 4th holiday weekend landed Sunday after taking off Thursday. Now, Sunday's total topped the previous peak of 2.99 million set to Sundays before that.