WorldView: Travel restrictions for U.K.; Kenyan doctors strike over COVID-19 concerns

A new variant of COVID-19 is spreading in the U.K., prompting border closings. Doctors in Kenya joined a nationwide strike over lack of PPE. Russian opposition leader Alexei Navalny tricked a government agent into revealing the details of an assassination plot. And Spain is set for its biggest lottery draw of the year. CBS News foreign correspondent Ian Lee joins "CBSN AM" with a roundup of headlines from around the world.