In an explosive interview with CBS' 60 Minutes, the former chief of the CIA's clandestine service describes waterboarding Sept. 11 mastermind Khalid Sheikh Mohammed. (A Warning: The interview contains some offensive language.)
Mechanical engineer Maurizio Porfiri, of the Polytechnic Institute of New York University, designs robot fish. A few years ago, he found that real fish would mill about his aquatic robot, and now he's trying to understand why. His research suggests that it has less to do with how the robot looks, than how it makes fish feel.