World News Roundup: 12/08 Update

<p>Britney Griner freed by Russia in prisoner swap.&nbsp;A surge in hospitalizations.&nbsp;Another power station attack.&nbsp;CBS News Correspondents Steven Portnoy in Washington and Steve Kathan in New York have today's World News Roundup.</p><p>See Privacy Policy at <a href="https://art19.com/privacy" rel="noopener noreferrer" target="_blank">https://art19.com/privacy</a> and California Privacy Notice at <a href="https://art19.com/privacy#do-not-sell-my-info" rel="noopener noreferrer" target="_blank">https://art19.com/privacy#do-not-sell-my-info</a>.</p>