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exp GPS Randall Web extra_00001001
exp GPS Randall Web extra_00001001

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    GPS Web Extra: Randall on what killed the dinosaurs

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GPS Web Extra: Randall on what killed the dinosaurs

Lisa Randall, author of "Dark Matter and the Dinosaurs," tells Fareed what killed the dinosaurs and what we can learn from their extinction today.

GPS Web Extra: Randall on what killed the dinosaurs

Lisa Randall, author of "Dark Matter and the Dinosaurs," tells Fareed what killed the dinosaurs and what we can learn from their extinction today.