An already dangerous, volatile situation turned even deadlier early Monday in Cairo when dozens of people were killed at a protest outside the Republican Guard facility where it's believed ousted President Mohammed Morsi is being held. Most of those who died are reported to have been among a large group of Morsi's supporters.
Update at 5:45 p.m. ET. Date Set For Egypt's Election
U.S. and EU officials begin talks Monday on an ambitious free-trade agreement aimed at generating billions of dollars of new trade. But negotiators must overcome barriers created by cultural and philosophical differences over sectors like agriculture. In Europe, the cultivation of genetically modified crops is banned, while in the U.S., they are a central part of food production. NPR's Jackie Northam visited a farm in Delaware and NPR's Eleanor Beardsley visited one in Burgundy, France, to look at those deep-seated differences. We hear from Jackie first.
If you're having chest pain, your doctor can test you for a heart attack. If you're having hip pain, your doctor could test for osteoarthritis.
But what if you're depressed? Or anxious? Currently there are no physical tests for most disorders that affect the mind. Lab tests like these could transform the field of mental illness. So far efforts to come up with biomarkers for common mental health disorders have proved largely fruitless.