World News Roundup: 09/21

President Biden set to address other world leaders at the U-N. Searching for Gabby Petito's fiancé. Concern about bare shelves for holiday shoppers. 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