Updated at 5:40 p.m. ET

NPR is asking the State Department to explain its decision to deny an NPR reporter press credentials to travel with Secretary of State Mike Pompeo on an upcoming trip to Europe, NPR President and CEO John Lansing announced Tuesday.

"We have sought clarification from the State Department regarding Michele Kelemen being dropped" from the trip, Lansing wrote in an email to employees. He added, "We have also asked what it means for future trips."

The world is being flooded with perhaps unfamiliar words and phrases in coverage of the newly discovered coronavirus — starting with the very word "coronavirus." (see below for definition).

Not even Gary Bettman knew the name of the first black hockey player in the National Hockey League when he became league commissioner in 1993.

Bettman has since hired Willie O'Ree, who broke the NHL's color barrier when he skated for the Boston Bruins in 1958, as a league ambassador, part of what the league is doing to make its game more diverse.

Updated at 3:20 p.m. ET

Charles Lieber, the chair of Harvard University's Department of Chemistry and Chemical Biology, has been arrested and criminally charged with making "false, fictitious and fraudulent statements" to the U.S. Defense Department about his ties to a Chinese government program to recruit foreign scientists and researchers.