Neuroscientist Paul Zak, author of The Moral Molecule, has studied the trust trap extensively at the Claremont Graduate University Center for Neuoroeconomic Studies, and says that we all suffer a hard-wired disadvantage when it comes to identifying well-structured cons.

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The guests will stay 1.5 miles from Samara Center, away from the tourist trap yet close enough to be of easy access.

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Beijing catches so much of the pollution from coal-burning power plants because it sits at the center of a ring of mountains, which help trap the smog.

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But William Tew, the Memorial-Sloan Kettering Cancer Center in New York who conducted the VEGF-Trap study, cautions that the Avastin study looked at less-sick cancer patients, who had failed fewer drugs.

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