Marco Rubio calls on Russian transparency over plague lab worker's death

Dozens of radical successful Russia are successful quarantine aft the decease of a pistillate who worked astatine a laboratory that studies plague and different infectious diseases. Russian officials accidental she died of pneumonia, but U.S. officials are not truthful sure. Dr. Ashish Jha, a elder chap astatine the Harvard Belfer Center, joins CBS News to discuss.

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