World News Roundup: 05/12

<p>Some drivers hoard gasoline as more stations run dry.&nbsp;Liz Cheney doubles down ahead of vote on her future.&nbsp;The worst Mideast violence in seven years.&nbsp;CBS News Correspondent Steve Kathan has 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>