The haunted past of Amy Bishop, a University of Alabama neurobiologist who shot six colleagues during a staff meeting.

How amateur satellite aficionados track the U.S. government’s spy technology.

Inside one of the biggest antiquities-smuggling rings in history.

How a Mexican drug cartel makes its billions.

Steven Donziger, an American lawyer, headed up a successful lawsuit against Chevron on behalf of Ecuadorans. Then the legal tables turned on him.

How a town of 29,000 on the Hudson River came to be “one of the most dangerous four-mile stretches in the northeastern United States.”

The amiable international arms dealer and the sting.

Working from a tiny shop in Chinatown, Sister Ping helped thousands of Chinese immigrate illegally by boat. By the time one of her ships ran aground, the F.B.I estimated her total profits at $40 million.