president biden observing from the situation room. u.s. troops forced to destroy their own helicopter, how the raid played out. the u.s. accusing russia of making a fake attack video to justify attacking ukraine as the first troops leave for eastern europe. the president in new york city to address the violent crime surge saying the answer is not to defund the police. the interview with the new mayor, eric adams. does he think the manhattan d.a. went too far when he said he wouldn't prosecute certain crimes? with beijing opening ceremony hours away, my interview with team usa figure skating star nathan chen. his quest for gold begins tonight. >> announcer: this is "nbc nightly news" with lester holt. a major storm plunging millions into a deep freeze. the weather system dropping snow and ice and crippling travel on the ground and in the air along