1. It was Tax Day, and the I.R.S. had a message for last-minute filers: Come back on Dec. 31, 9999.

The message, displayed on the payment section of the I.R.S. website, was the result of a technical glitch. The electronic filing system was also down for hours. The agency said the problems had been resolved.

President Trump was not among those scrambling; he filed for an extension.

And in our Opinion section, a guest writer confronts an ethical dilemma regarding her tax bill. She objects to many federal policies — but notes that her tax dollars also go to causes she deems worthy, like Pell Grants, diplomacy and “Frontline.”