World News Roundup: 03/01

An increased threat from Russia as attacks intensify in Ukraine. Tight security for the State of the Union. The return of Mardi Gras. CBS News Correspondent Steve Kathan has today's World News Roundup. To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices