The U.S. Postal Service (USPS) has been busy keeping customers alert about postal problems like counterfeit postage and collection box theft. But these are not the only issues that can affect your mail service. Countless unexpected circumstances can make it dangerous for the USPS to keep certain post offices open....

The US agreed to spend at least $6 billion last year to mail millions of at-home Covid-19 tests, but the Biden administration won’t share the price per test, where they were sent, or details showing whether they reached the neediest Americans. White House staff, the US Postal Service, and other agencies...