Friday on the NewsHour, a highly mutated and transmissible strain of COVID-19 emerges in South Africa and prompts markets to fall and new travel bans, why dozens of men in Louisiana have spent most of their the life behind bars after the state reneged on their plea agreements, and the millions who rely on water from the Colorado River face an uncertain future amid an unrelenting drought.

WATCH TODAY’S SEGMENTS:
Alarm grows after emergence of new omicron COVID-19 variant. Here's what you need to know
https://youtu.be/bvA9jXsJmbc
News Wrap: Ukraine president implicates Russia in plot to overthrow the government
https://youtu.be/gluZfTni3tU
Why dozens of men spent most of their lives in prison after Louisiana reneged on plea deal
https://youtu.be/_lELr4YQNmE
Unrelenting drought leaves millions who rely on Colorado River facing an uncertain future
https://youtu.be/Tu32N_Lwk5M
Brooks and Capehart on new COVID-19 variant, inflation, Ahmaud Arbery verdict
https://youtu.be/kQGexNsaREE
Stephen Sondheim, a giant in musical theater, dies at 91
https://youtu.be/nnRIQLedy6A

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