PBS NewsHour full episode, July 30, 2021

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    • What to know about the CDC's delta variant...   News Wrap: Trump tax returns must go to Congress, DOJ says    • News Wrap: Trump tax returns must go to Co...   First Afghan interpreters, their families arrive in the U.S.    • First Afghan interpreters, their families ...   CIA still investigating U.S. diplomats' 'Havana Syndrome'     • CIA still investigating cause of 'Havana S...   Hong Kong residents worry immigration law may ban their exit    • Hong Kong residents worry vague new immigr...   Brooks and Dionne on vaccine hesitancy, Jan. 6 hearings    • Brooks and Dionne on vaccine hesitancy, Ca...   Lessons from McDonald's' investment in Black neighborhoods    • Marcia Chatelain examines McDonald’s' mixe...   A Brief But Spectacular take on reducing sexism in science    • A geologist's Brief But Spectacular take o...   Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly/2HfsCD6 Follow us: Facebook: http://www.pbs.org/newshour Twitter:   / newshour   Instagram:   / newshour   Subscribe: PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts Newsletters: https://www.pbs.org/newshour/subscribe