Mary Louise Kelly

Coronavirus cases and deaths in the U.S. are down dramatically from last winter's peaks, but the road ahead could still be a long one, with the rapid spread of the delta variant — now the dominant strain of the virus in the U.S. — and mounting questions over how effective current vaccines are against it.

Hundreds of rescue workers are still searching for survivors in the rubble of the collapsed Champlain Towers South in Surfside, Fla. As of Tuesday, 32 people have been reported dead, and 113 are still missing.

Mental health counselors are also on the scene, helping families whose loved ones have been confirmed dead and those still waiting for news of missing loved ones.

Geneva is crawling with spies right now, says a longtime CIA veteran.

Intelligence agents from the U.S. and Russia are out in force as President Biden prepares to meet with Russian President Vladimir Putin on Wednesday, says Daniel Hoffman. Hoffman served as CIA station chief in Moscow for five years, and had assignments elsewhere in Europe, the Middle East and South Asia.

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MARY LOUISE KELLY, HOST:

The U.S. will donate 500 million doses of COVID vaccine to the rest of the world. President Biden made that announcement today in Cornwall, England.

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Updated June 3, 2021 at 6:35 PM ET

Last month, a cyberattack on the company Colonial Pipeline, which operates a pipeline providing nearly half the East Coast's fuel supply, triggered a massive shutdown. Hackers infiltrated its computer network and demanded more than $4 million in ransom; the company shut down the pipeline.

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