World News Roundup: 03/30

<p>Alarm over US COVID-19 cases, despite vaccination progress. Witness testimony at Derek Chauvin's murder trial. New attacks against Asian-Americans. Correspondent Steve Kathan has the CBS World News Roundup for Tuesday, March 30, 2021:</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>