Invasion! Asian giant hornets have arrived

They can grow as large as 2½ inches and can slaughter a colony of thousands of honeybees in a matter of hours. And their sting? It's one of the most painful known to humankind. Vespa mandarinia, dubbed by The New York Times as "murder hornets," are the nation's latest invasive species, and correspondent Luke Burbank talks with entomologists and a beekeeper about the threats these insects pose and what's being done to keep them from establishing themselves in the U.S.

Is the United States "hitting bottom"?

1968 was a year that saw America tested over issues of race and war. In 2020, the country is being tested over issues of race and the pandemic. "Sunday Morning" senior contributor Ted Koppel talks with noted political figures and writers — former Secretary of State Colin Powell, Senator Tom Daschle, and Pulitzer Prize-winning writers Kathleen Parker and Anna Quindlen — about government dysfunction; the dangers of the Twitterverse; and the leadership needed to unite these United States.

"Last Mission to Tokyo" documents WWII's extraordinary Doolittle Raiders

Following the Japanese attack on Pearl Harbor, the Doolittle Raiders were the first pilots to successfully strike Japan. The mission was one of the defining moments of World War Two. The raid has been well documented, but the story of what happened after hasn't been told in full -- until now. Jeff Glor spoke to Michel Paradis, whose new book "Last Mission to Tokyo" documents both the raid, and the little known history that followed.

Apps aid contact tracing effort in Italy

Contact-tracing apps are already being used in Italy, Germany, and around Europe to help track the coronavirus. Through a phone's BlueTooth signal, the apps can contact users who encountered someone who's tested positive for coronavirus. Chris Livesay reports.

China orders U.S. to shut down Chengdu consulate in retaliatory move

China is ordering the U.S. to shut down its consulate in the southwestern city of Chengdu as tensions escalate between the two countries. In a Thursday speech, Secretary of State Mike Pompeo accused China of using its Houston, Texas consulate to spy and steal intellectual property. China denies Pompeo's accusations, and says the U.S. is gravely harming relations with Beijing.