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New DNA analysis adds evidence Jefferson fathered children with Sally Hemings

A lock of hair, 15 years of sleuthing and a 200-year-old question. In History by a Hair, Smithsonian Institution scholar Richard Kurin follows the...

Donald Trump dreams of a beautiful police state

In a social media post Sunday, President Donald Trump announced a major update to the “triumphal arch” he intends to build in Washington. The...

A spooky near-confrontation with China shows the real danger of AI today

In the wake of spooky incidents of artificial intelligence agents defying their creators’ commands and rules, the great fear of the day is the...