With the holidays fast approaching, the U.S. Postal Service has entered its busiest week of the year. Workers at USPS's massive processing and distribution center on Lindbergh Boulevard in Southwest Philadelphia are feeling the rush.

Employees are putting in long hours to keep up with the surge. According to USPS, the Southwest Philadelphia facility is now handling 6.5 million letters every day, which is about a 25% jump compared to a normal day.

"I guess we're like Santa Claus for the Post Office, where we get the mail and the packages delivered to the people," USPS distribution clerk Detra Kemp said.

To keep mail moving, USPS is relying heavily on automation. Machines inside the facility can scan and sort packages by ZIP code up to five times faster than a human, helping workers stay

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