NPR Public Editor

Anchor Korva Coleman delivers the 10 a.m. newscast on December 7, 2016, as seen on Facebook Live by an audience of more than 76,000 viewers. Facebook hide caption

In this Nov. 26, 2016 photo, organizers of protests against construction of the Dakota Access oil pipeline speak at a news conference near Cannon Ball, N.D. James MacPherson/AP hide caption

In this August 2016 photo, Stephen Bannon, then-Republican presidential candidate Donald Trump's campaign chairman, attends Trump's Hispanic advisory roundtable meeting in New York. Gerald Herbert/AP hide caption

The NPR newsroom during election coverage on November 8, 2016, in Washington, D.C. Stephen Voss/NPR hide caption

Hillary Clinton spoke to the audience during the second presidential debate. Saul Loeb/AP hide caption

WikiLeaks released emails allegedly from Democratic presidential candidate Hillary Clinton's campaign chairman, John Podesta. J. Scott Applewhite/AP hide caption

A leaked video showed Donald Trump (pictured with 'Days of Our Lives' actress Arianne Zucker and then-Access Hollywood co-host Billy Bush) bragging about groping women. The Washington Post/Getty Images hide caption

Republican presidential nominee Donald Trump answers a question as Democratic presidential nominee Hillary Clinton listens during the presidential debate at Hofstra University on Sept. 26, 2016. David Goldman/AP hide caption

Scientific American reported last week on the US Food and Drug Administration's past use of what are known as "close-hold" embargoes. Andrew Harnik/AP hide caption