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Gwen Ifill takes a closer look at the responses with Amy Walter and Tamara Keith.
Are politics of fear driving anti-Muslim sentiment?
Gwen Ifill gets two perspectives.
President Obama sought to reassure the nation Sunday night in an address.
Politicians grapple with how to fend off terror threats
Should Congress rein in this controversial visa program?
William Brangham learns more about the probe from Assistant Attorney General Vanita Gupta.
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