3/23: A gunman kills ten people in a CO supermarket. New help for migrant kids arriving in the U.S. alone.

New details are emerging about the horrific moments when a gunman opened fire at a Colorado supermarket. We're learning of new charges against the man who police say confessed to killing eight people in last week's Atlanta-area spa shootings. Breaking overnight, federal health officials are casting doubt on the results of a new AstraZeneca study that we told you about yesterday. CBS News is learning about new steps the Biden administration is taking to try to ease the growing crisis at the border. There are reports of a massive potential new spending push from the Biden administration. Voters in Israel are casting ballots this morning in the country's fourth election in two years.

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