World News Roundup: 09/14

Negotiators try to head off a railroad strike.  Investors on edge after stock plunge. Northeastern University package explosion. 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