A Guardian investigation into the U.S. overdose slowdown found that national declines masked sharp local disparities. Here's how the reporting team got the story.

The owners have put a 67-year-old nudist colony on the market, hoping a new steward can help it shed its troubled past.

Jeffrey Epstein and Ghislaine Maxwell lavished money on the Interlochen Center for the Arts to gain access, documents show.

Artificial intelligence detectors are increasingly used to check the veracity of content online. We ran more than 1,000 tests and found several strengths and plenty of weaknesses. By Stuart A.