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    Has U.S. lost its ability to dream big?

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Has U.S. lost its ability to dream big?

CNN's Christiane Amanpour speaks with billionaire investor Peter Thiel, PayPal co-founder, about American thinking big.

Has U.S. lost its ability to dream big?

CNN's Christiane Amanpour speaks with billionaire investor Peter Thiel, PayPal co-founder, about American thinking big.