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The U.S. military mobilizes 3,000 troops to NATO allies in Eastern Europe. Facebook announces a decline in usership, causing its stock to plummet. And Muhammad Abdul Aziz, who for decades was imprisoned as Malcolm X's killer, speaks to ABC News following his exoneration.

The FDA will consider Pfizer's vaccine for children as young as 6 months old. A recently-fired NFL coach files a discrimination lawsuit. And a fire at a fertilizer plant stokes fears of a major explosion.

A new report on pandemic parties put British Prime Minister Boris Johnson's job at risk. A federal judge throws out a plea deal in the trial of Ahmaud Arbery's killers. And Olympic athletes arrive in Beijing, where one positive test could wipe out their dreams.

As scientists test new COVID therapeutics, especially for people who can't -- or won't -- get a vaccine. It's gut-check time for bail reformers as crime rates rise. And Spotify faces a backlash from prominent musicians.

Supreme Court Justice Stephen Breyer officially announces his retirement, and President Biden reaffirms his vow to name a Black woman to the Supreme Court. A Tennessee school board unanimously bans a book about the Holocaust. And a new study claims our gas stoves are leaking more methane than previously thought -- even when they're not running. 

EDITOR’S NOTE: A previous version of this podcast misidentified the networks that produced “Janet.” The documentary was produced by Lifetime and A&E.

Justice Stephen Breyer will retire from the Supreme Court, setting off a scramble to replace him. The loss of an F-35 fighter jet creates the potential for a treasure hunt in the South China Sea. And several attorneys general file suit against Google over tracking users' locations.

NATO countries are readying troops for a potential Russian invasion of Ukraine, but admit those troops wouldn't see combat. Florida Gov. Ron DeSantis criticizes an FDA decision to withdraw monoclonal antibody treatment that appears ineffective. And the College Board announces changes to the SAT.

The Supreme Court takes a case on affirmative action that could overturn long standing precedent. An ISIS jailbreak has now drawn American servicemembers to a remote Syrian outpost. And with cryptocurrency pulling in more U.S. dollars, ABC's Elizabeth Schulze goes inside a Bitcoin "mine."

Startling new numbers on COVID transmission shed light on how challenging an economic comeback could be. The U.S. State Department starts to empty its Ukrainian embassy. And the investigation into the death of a young Black woman in Connecticut leads to a national debate -- and a potential lawsuit.

After President Biden's revealing news conference, America's top diplomat meets with the Russian foreign secretary. Transplant experiments involving pig organs reach a new stage. And the NCAA implements a new policy on trans athletes.