NPR Public Editor

Visitors to the Ah-Tah-Thi-Ki Seminole Museum regard a letter dated February 9, 1774 on display in 2006. The letter was written by John Moultrie, the Lieutenant Governor of then British East Florida and addressed to 'The Cowkeeper, the founder of the Seminole Tribe of Florida' in which Moultrie asks The Cowkeeper for peace between the Seminoles and the British. Joe Raedle/Getty Images hide caption

People bow their heads in prayer during a vigil in Winston, Ore. to honor of the victims of the fatal shooting at Umpqua Community College. John Locher/AP hide caption

FC Kansas City pose with the trophy after the NWSL soccer championship match in Portland, Ore., on Oct. 1. Deford's commentary was corrected to include information about the NWSL, the top professional women's soccer league in the U.S. Craig Mitchelldyer/AP hide caption

In this August 2015 file photo, plants burned in the Rocky Fire are shown near Lower Lake, Calif. NPR's environment and climate change reporting encompasses related topics such as wildfires, drought, and other natural disasters. Jeff Chiu/AP hide caption

Former NPR science correspondent (and now host of Science Friday) Ira Flatow interviews a few penguins while reporting from Antarctica in 1979. NPR's environment reporting has increased and expanded greatly since. Katherine Bouton/IraFlatow.com hide caption

Members of the WDBJ-TV7 news staff prepare for the early newscast at the station, the morning after reporter Alison Parker and cameraman Adam Ward were killed by a former colleague during a live broadcast. Steve Helber/AP hide caption

An opponent and supporter of Planned Parenthood demonstrate in Philadelphia in July. Anti-abortion activists are calling for an end to government funding for the nonprofit reproductive services organization. Matt Rourke/AP hide caption

A migrant arrives with his son on the shore near the village of Skala Sikaminea, on the southeastern Greek island of Lesbos, Greece on Friday. Greece this year has been overwhelmed by record numbers of migrants arriving on its eastern Aegean islands, with more than 160,000 landing so far. [Caption from AP, lightly edited.] Visar Kryeziu/AP hide caption

Democratic presidential candidate Sen. Bernie Sanders, speaks at the 2015 International Association of Sheet Metal, Air, Rail, and Transportation Workers Conference in July. Jacquelyn Martin/AP hide caption

Israeli Prime Minister Benjamin Netanyahu chairs the weekly cabinet meeting in Jerusalem on March 29. Netanyahu then said he had "deep concern" over the West's pending nuclear deal with Iran. Dan Balilty/AP hide caption