There's little doubt that the U.S. wastes a lot of money on unnecessary health care. But pinning down the worst offenders isn't easy, as a fresh analysis of the scientific literature finds.
Published research on overuse is in pretty short supply, so rooting out waste by looking at the existing studies can be a little like limiting your late-night search for lost car keys to the spots right under streetlights.
It was a year ago today that Egyptians started a revolt that led to the fall of President Hosni Mubarak. Marking the day, tens of thousands of people took to the streets both in celebration and in protest of the military rulers that took Mubarak's place.
Reporting from Cairo, NPR's Soraya Sarhaddi Nelson sent this report to our Newscast unit: