As children head back to school across the country, a new Covid-19 Mu variant is emerging and has been detected in nearly every state. NBC News senior medial correspondent, Dr. John Torres, breaks down the latest on the emerging variant and how parents can keep their kids safe from the virus.  » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more …

President Joe Biden toured the disaster zones of New Jersey and New York following Hurricane Ida. He said the damage is “an opportunity” to rebuild sustainably. WATCH THE FULL EPISODE OF ‘WORLD NEWS TONIGHT’: https://bit.ly/3uHCDO5 WATCH OTHER FULL EPISODES OF WORLD NEWS TONIGHT: http://abc.go.com/shows/world-news-tonight WATCH WORLD NEWS TONIGHT ON HULU: https://bit.ly/3iQLwPp #WorldNewsTonight #HurricaneIda #PresidentBiden Original source (ABC/Youtube)

As Covid cases begin to stabilize in some parts of the country, there’s concern that the nearly pre-pandemic number of Americans who traveled for the holiday weekend could fuel another nationwide surge. » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC video: http://bit.ly/MoreNBCNews NBC News Digital is a collection of innovative and powerful news brands that deliver compelling, diverse …