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.

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.