The US Postal Service is closing for 24 hours this week in celebration of America's 250th. Here's what services will, and will not be in operation this weekend.

There’s a concerted effort going on to tamper with the U.S. mail. Delivery times of mail through the U.S. Postal Service have become glacial. And I’m beginning to think that the problem is the plan.

A multibillion-dollar program to buy electric vehicles for the U.S. Postal Service is far behind its original schedule, plagued by manufacturing mishaps and supplier infighting that threaten a ...