TONIGHT: Lester Holt interviews Dr. Anthony Fauci as the US adds travel restrictions in response to the Omicron Covid-19 variant. We'll have the latest tonight on NBC Nightly News at 6:30 ET / 5:30 CT (check your local NBC station listings). Read more: https://nbcnews.to/3p4LxV5 | NBC Nightly News with Tom Llamas

"One pill could kill. One pill, one time, game over." Tonight on NBC Nightly News, Lester Holt talks to Cheri Oz, Special Agent in Charge of the DEA's Phoenix Field Division, about the fentanyl crisis. Watch the full report at 6:30 pm ET / 5:30 pm CT (check local listings). | NBC Nightly News with Tom Llamas

Ahead for us on NBC Nightly News with Lester Holt: > Lester Holt speaks with CDC Director Dr. Rochelle Walensky about the omicron variant. > Stephanie Ruhle follows the journey of a single sweater to explain the impact of supply chain slowdowns. And much more. Join us on your local NBC station. | NBC Nightly News with Tom Llamas