Italian financial police officers talk in front of St. Peter's Basilica in Rome. Recently leaked Vatican documents have raised questions about the Vatican's financial transactions. Angelo Carconi/AP hide caption

Would You Give This Guy Your Money? Space Monkey co-founder Alen Peacock delivers a presentation at the 2012 LAUNCH Festival in San Francisco. Peacock says that when he first got started, he couldn't accept investments from friends because they weren't accredited investors. LAUNCH Media, LLC via Flickr hide caption

A volunteer feeds one of the dogs rescued from slaughter last December in a stand-off between animal rights activists and dog-meat sellers in central China. Such rescues have been taking place with some regularity in China. Frank Langfitt/NPR hide caption

Demonstrators cheer the effort to recall Wisconsin Gov. Scott Walker on Jan. 17 in Madison. Andy Manis/AP hide caption

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 hide caption