Lead exposure lowered the IQ of about half the U.S. population, study shows

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Russian jets flew over U.S. Syrian base nearly every day in March
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Chuck Todd: Only thing that will keep Trump off the ballot in 2024 'might be the legal system'
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Tainted eyedrops linked to three deaths and extensive vision loss
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Federal Reserve raises interest rates by 0.25%
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New York grand jury weighing Trump indictment will not meet Wednesday
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North Korea fires missiles as U.S., South Korea military drills end
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Meet Sesame Street’s first Black female puppeteer
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Federal Reserve to decide on interest rate hikes amid banking sector turmoil
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Biden awards 2021 National Medals of Arts and Humanities in star-studded ceremony
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President Xi wraps up Russia trip with message to the West
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Grand jury to decide on possible Trump indictment
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Musical family forms 'Quarantined Quartet'
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Rollerskating revival holds special significance for communities of color
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Civil rights groups call for investigation into new Fort Hood death
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UP NEXT
Russian jets flew over U.S. Syrian base nearly every day in March
03:12
Tensions ramp up as North Korea test-launches multiple cruise missiles
05:03
Creators, lawmakers oppose ban of TikTok at Capitol rally
04:42
Remembering NBC News’ Vaughn Ververs
01:55
Sen. Baldwin calls for more security to ‘safeguard’ data ‘even when it's in U.S. hands’
07:43
John Kasich: Trump is still ‘a long way from the nomination’
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