NBC Nightly News Broadcast (Full) – March 3rd, 2021 | NBC Nightly News

FBI and DHS warn of possible threat to Capitol, U.S. troops attacked at Iraqi air base, and Mississippi facing water crisis after winter storm.

Watch “NBC Nightly News With Lester Holt” at 6:30 p.m. ET / 5:30 p.m. CT (or check your local…