 TSA officials expect to break records. Here's Faith Abubay. TSA is experiencing some of its highest passenger count ever. In fact, this past Friday was the fourth busiest day on record for the TSA. Nearly 3 million passengers screened at airports nationwide. But it's this coming Wednesday, July 3rd, that will likely be the busiest day to head to your destination this holiday period. Leo Vargas, WDBO. Weather, brought to you by ProTech Air Conditioning and Plumbing Services.