Russia pushes back against reports that plague researcher died after test tube broke

A Russian lab worker at an institute focused on the plague, the notorious bacterial infection tied to medieval pandemics like the Black Death, has reportedly died, which President Trump called "a big problem for Russia." Ramy Inocencio has more on what we know.15h ago (01:22) Videos French students, parents protest over schools Trump says Iran can "take out" San Diego, LA What to know about plague lab worker's death Jim Bakker, disgraced televangelist, dies Latest on mysterious Russian lab worker death Protests break out on Cornell campus Eye Opener: Protests break out at Cornell American, Germans wins Nobel medicine prize B-1 bombers removed from U.K. Alleged Chinese agent arrested at LAX What cases the Supreme Court will take up Poll: Collins and Jackson tied in Maine Alito on criticism of SCOTUS from political leaders Extended Interview: Sen. Thom Tillis "Hawkeye Wave" spreads kindness Caleb Flynn claims innocence during sentencing Alito says justices are not political players Trump focuses on red states ahead of midterms U.S. hastily removes B-1 bombers from U.K. Growing anger against Cornell University CBS News 24/7 CBS News 24/7 Mornings CBS News Baltimore WJZ 9am CBS News Ba...