in spreading the virus, a little extra caution is not beyond comprehension. It will not last forever, either. Yesterday’s about-face showed that while the C.D.C. may be slow, officials there take their mission seriously and do not enjoy being out of step with science.

“This is a watershed moment in the pandemic,” Dr. Lucy McBride, an internist, wrote on Twitter. “Next up: unmasking kids outdoors. Please, C.D.C.??”

For more:

  • “After a year of hard work and so much sacrifice, the rule is very simple: Get vaccinated, or wear a mask until you do,” President Biden said.

  • Biden and Republican senators meeting at the White House removed their masks. “Get vaccinated!” said Senator Joe Manchin of West Virginia, on a visit to his home state with Jill Biden. “We feel free.”

  • A network of conservative activists mounted a campaign to discredit perceived enemies of Donald Trump inside the government, including F.B.I. employees and one of Trump’s national security advisers.

  • Missouri’s governor, a Republican, said he would not support an expansion of Medicaid that voters approved last year.

  • Representative Liz Cheney’s defiance of Trump isn’t popular in her home state of Wyoming. But some residents are sticking up for her.

  • “Let’s talk plain English here”: A behind-the-scenes look at how Biden runs his White House and how he spends his evenings.

Enduring admiration for “Titanic.”

Modern Love: A bear chased them. Then they chased the bear.

A Times Classic: How does family income predict children’s chances of going to college? Draw your guess.

Lives Lived: The chemist Spencer Silver set out to create an adhesive strong enough to be used in aircraft construction. He instead invented one that found use in a ubiquitous office product: the Post-it Note. Silver died at 80.

Reggie Ugwu writes in The Times. It follows a young enslaved woman who escapes through an actual underground railroad.

Jenkins said he was reluctant to make another movie about slavery’s brutal violence. Instead, Reggie writes, the focus is on “the psychic and emotional scourge, and the unfathomable spiritual strength required for any individual — let alone an entire people — to have come out alive.”

James Poniewozik, The Times’s chief television critic, hails the show as a “stirring, full-feeling, technically and artistically and morally potent work.” — Tom Wright-Piersanti, Morning editor

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