NPR's weekly news quiz hosted by Peter Sagal. Have a laugh and test your knowledge with today's funniest comedians and a celebrity guest.

Concerns of environmental impact and costs rise after more than 200 million gallons of raw sewage spilled into the Potomac River.

February 18, 2026 • A study finds that people who did one specific form of brain training in the 1990s were less likely to be diagnosed with dementia over the next 20 years.