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.