Political Culture Theory

After watching the video below, please write about the question.

Islam: What the West Needs to Know
http://www.youtube.com/watch?v=olkjSL6fTHU&list=PL4773248F2A6B6DC9

Question: Why does Barber believe that the realist paradigm fails to provide U.S. guidance for U.S. foreign policy in the 21st century?

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