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U.S. sees another 2.4 million jobless claims amid pandemic

U.S. sees another 2.4 million jobless claims amid pandemic

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4:19
New COVID-19 model shows why early action matters

New COVID-19 model shows why early action matters

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5:15
Why Gov. Ralph Northam delayed reopening parts of Virginia

Why Gov. Ralph Northam delayed reopening parts of Virginia

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News Wrap: Powerful cyclone batters India, Bangladesh

News Wrap: Powerful cyclone batters India, Bangladesh

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5:46
U.S. cites Russian treaty violations as cause for withdrawal

U.S. cites Russian treaty violations as cause for withdrawal

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6:36
How the pandemic has pushed U.S. retail to brink of collapse

How the pandemic has pushed U.S. retail to brink of collapse

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7:11
Can transit workers be kept safe among crowds of passengers?

Can transit workers be kept safe among crowds of passengers?

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9:19
A virologist answers questions on coronavirus transmission

A virologist answers questions on coronavirus transmission

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6:54
Americans prepare for a Memorial Day transformed by COVID-19

Americans prepare for a Memorial Day transformed by COVID-19

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4:37
China is proposing to limit Hong Kong's autonomy. Why now?

China is proposing to limit Hong Kong's autonomy. Why now?

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5:19
What we know about COVID-19 antibodies -- and what we don't

What we know about COVID-19 antibodies -- and what we don't

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6:35
Why virus research is a tension point for the U.S., China

Why virus research is a tension point for the U.S., China

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7:39
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PBS News Hour

The value -- and the limitations -- of COVID-19 models

For months, scientists and public officials have relied upon computer-based models to try to predict the trajectory or the coronavirus outbreak. But models are not crystal balls, and all of them involve human assumptions. Science correspondent Miles O’Brien reports on how the efforts that go into making these models -- and their ultimate purpose -- are more complicated than many of us realize.
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