On Jan. 23, 2020, as the coronavirus spread in China, residents of Wuhan, where it was first identified, donned masks to go shopping. The U.S. didn't officially endorse masks as a preventive measure for the public for a number of weeks. Stringer/Getty Images hide caption
A missing persons flyer, bearing the name of Annie Le, shown here in New Haven, Conn., in September 2009. This year, the Columbia Journalism Review (CJR) launched a new tool that allows users to openly share their "press value" with the world if they were to go missing. Thomas Cain/Associated Press hide caption
Journalists report from Kyiv, Ukraine, on March 2. Media coverage of Russia's invasion of Ukraine has been massive. Pierre Crom/Getty Images hide caption
A memorial to missing and murdered Indigenous women is set up in St. Paul, Minn. Universal Images Group via Getty Images hide caption
Arianna Huffington, president and editor-in-chief of The Huffington Post Media Group, speaks at the 2014 World Economic Forum. Reporters and editors in 15 countries will contribute to "What Works," her site's new initiative focused on covering positive news. Ruben Sprich/Reuters/Landov hide caption
Republican presidential nominee Mitt Romney and President Obama spar over energy policy during the second presidential debate at Hofstra University on Tuesday. Charlie Neibergall/AP hide caption