World News Roundup - 10/12

<p>As Russia expands Ukraine attacks, President Biden says he doesn't think Vladimir Putin would use nuclear weapons.&nbsp;New health concerns for a PA Senate candidate.&nbsp;NASA says its space craft successfully an asteroid's path.&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>