How do Americans become enemies of their own state?

Aired: 3/8/2016 | 0:06:09 | Clip
In the wake of the Boston Marathon bombings and San Bernardino mass shooting, homegrown Islamic extremism has become one of the country’s most pressing national security concerns. Author Peter Bergen set out to document how and why Americans become enemies of their own state in his book, “United States of Jihad.” Chief foreign affairs correspondent Margaret Warner joins Bergen to learn more.

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