Pfizer begin trials of its Omicron vaccine. US troops on higher alert. Tom Brady hints at retirement. CBS News Correspondent Steve Kathan has today's World News Roundup.

<p>Pfizer begin trials of its Omicron vaccine. US troops on higher alert. Tom Brady hints at retirement. CBS News Correspondent Steve Kathan has today's World News Roundup.</p>

The longest-running network radio newscast in the United States, for more than 75 years. Listen each weekday morning for a complete look at national and international news.

CBS World News Roundup

The longest-running network radio newscast in the United States, for more
than 75 years. Listen each weekday morning for a complete look at national
and international news.
 

Advertisement