A U.S. assessment team sent to the mountain concluded there were far fewer Yazidi refugees stranded there than previously thought, Defense Secretary Chuck Hagel said.
It's not just Americans who are oversalted. A new study reports that sodium takes a global toll, attributing 1.65 million deaths from cardiovascular disease to sodium consumption.
Projections suggest that climate change will hurt agriculture in most parts of the world. But some areas of the U.S. could actually see a benefit as corn production moves farther north.