The group will examine topics such as disrupting extremist activity and ways to challenge extremist ideology.

WSJ: U.K. Suspect Was Detained in Kenya in 2010

The FBI investigated but found no evidence of extremist activity and closed the case.

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The FBI investigated, but found no evidence of extremist activity, FBI Director Robert Mueller told a Senate committee.

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But the FBI found no evidence of extremist activity and closed the case.

CNN: Source: Russia withheld details about Tsarnaev

The FBI investigated, but found no evidence of extremist activity, FBI Director Robert Mueller reiterated Thursday during a Senate Appropriations Committee hearing.

CNN: Suspect: Boston bombing was payback for hits on Muslims

The project is dedicated to monitoring hate groups and extremist activity in the U.S. He joined us from his office in Montgomery, Alabama.

NPR: The Tipping Point: When Hate Turns To Violence

Gates said al Qaeda has increased its activity in Pakistan and begun partnering with other extremist groups in the nation -- a situation that threatens not just the country or region, but the whole world.

CNN: Gates: U.S. willing to send troops to Pakistan