World News Roundup 03/31

<p>Pfizer announces its COVID-19 vaccine is very effective and safe in kids as young as 12. Details on a $2 trillion roadmap for new jobs. Young witnesses recount George Floyd's final moments. Correspondent Steve Kathan has the CBS World News Roundup for Wednesday, March 31, 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>