Friday on the NewsHour, as new data from the Centers for Disease Control and Prevention exposes how infectious and dangerous the COVID variant of the coronavirus is, we discuss the science. Then, Afghan interpreters arrive on U.S. shores, finding safety after risking it all to help America during the war. And, China tightens its grip on Hong Kong by closing the border to prevent a mass exodus.

WATCH TODAY’S SEGMENTS
What to know about the CDC's delta variant study
https://www.youtube.com/watch?v=gu5DVa6EOfA
News Wrap: Trump tax returns must go to Congress, DOJ says
https://www.youtube.com/watch?v=K3UhD90lOeI
First Afghan interpreters, their families arrive in the U.S.
https://www.youtube.com/watch?v=rZ4AjdhZ8Bg
CIA still investigating U.S. diplomats' 'Havana Syndrome' 
https://www.youtube.com/watch?v=-ypQlg8Hxm0
Hong Kong residents worry immigration law may ban their exit
https://www.youtube.com/watch?v=8W2JR6ckFGY
Brooks and Dionne on vaccine hesitancy, Jan. 6 hearings
https://www.youtube.com/watch?v=bByPEpzq9BA
Lessons from McDonald's' investment in Black neighborhoods
https://www.youtube.com/watch?v=E2lQXv9OjZQ
A Brief But Spectacular take on reducing sexism in science
https://www.youtube.com/watch?v=6aspsUrjx6U

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