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Episode #07097
Missy Cummings wants to replace the military's cumbersome battlefield surveillance technology with lightweight, smartphone-operated drones. (05:35)
Episode #07093
Michael Sandel uses real-world examples to test big philosophical concepts and ethical questions about justice and cannibalism. (07:10)
Episode #05137
Physicist Brian Cox, one of People Magazine's Sexiest Men Alive, discusses relativity and scientific bollocks. (06:05)
Episode #03048
Stephen isn't saying we don't face challenges in Iraq -- they still don't get his show in the Sunni triangle. (3:20)