Mandel Ngan / AFP via Getty ImagesWhite HouseBiden urges booster shots amid growing alarm over omicron variantCovid-19 hospitalizations rising in South Africa’s omicron hot spotBiden administration won't take action against unvaccinated federal workers until next year
Joe Raedle / Getty Images fileBusiness NewsJack Dorsey steps down as Twitter CEOWATCH: Parag Agrawal appointed CEO of Twitter following Dorsey exit
Hamza Turkia / Xinhua News Agency / Getty ImagesHamza Turkia / Xinhua News Agency via Getty Imagesspecial reportHow Europe is helping Libya capture and lock up migrantsAs Europe's border crisis eases, migrants face costly return to reality they sought to escapeChannel sinking gives tragic jolt to U.K.-France dispute over border
Shelby Tauber / The Texas TribuneU.S. news9 months after the Texas freeze, the power grid remains vulnerable
Bridget Bennett for NBC NewsU.S. newsGreen ... but maybe not clean: Nevada desert town fights to keep solar company out
Randy Brooks / AFP via Getty ImagesWorld'A monumental step': Barbados to cut ties with the queen, become a republic in grand ceremony
