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The fascinating story of Elizebeth Smith Friedman, the groundbreaking cryptanalyst.

A new commentary from David Lewis:

That's according to a new analysis from Save the Children. Yemen's outbreak is the world's worst in a single year since records have been kept, according to Oxfam.

Voters overwhelmingly approved Issue 1, which changes the way the state’s Congressional district map will be drawn in 2021 and beyond setting up new...

With the rise of self-driving cars, there's a need to define the "five levels of autonomy," referring to the gradual change from driver-assisted to fully automated cars.

If you're a Democratic voter, did you come away with a clear feeling of who of that first batch of 10 candidates could be president — and is best positioned to take on President Trump?

More than a thousand people waited in line to see a dentist at an annual free clinic in Pittsburgh. Some had never been to a dentist before.

For this edition of 1A Across America, we’re visiting three areas of Michigan to explore shifting political allegiances ahead of the 2020 election.

An elite corps of U.S. astronauts is trained to gather intelligence on the Soviets.

The story of the polygraph, the controversial device that transformed modern justice.