A package of K2, a concoction of dried herbs sprayed with chemicals sometimes called synthetic marijuana. New York moved to ban a wide range of products like these this week.
This image shows the grid structure of the major pathways of the brain. It was created using a scanner that's part of the Human Connectome Project, a five-year effort which is studying and mapping the human brain.
MGH-UCLA Human Connectome Project
A patient is treated at the Nord Hospital in Marseille, France, in February. European countries have also been engaged in intense debates on the future of their health care systems, where universal coverage is the norm.
Anne-Chrisine Poujoulat/AFP/Getty Images