CIA Director Says ISIS Likely Has Other Attacks Planned

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CIA Director John Brennan greets colleagues after delivering remarks at the Center for Strategic and International Studies November 16, 2015 in Washington, DC. Brennan spoke during the 6th annual "Global Security Forum" on the top challenges facing U.S. and global security and addressed questions related to Friday's terror attack in Paris.
CIA Director John Brennan greets colleagues after delivering remarks at the Center for Strategic and International Studies November 16, 2015 in Washington, DC. Brennan spoke during the 6th annual "Global Security Forum" on the top challenges facing U.S. and global security and addressed questions related to Friday's terror attack in Paris.Win McNamee—Getty Images
By Tessa Berenson Rogers

CIA Director John Brennan said he thinks ISIS has other missions planned after Friday’s deadly attack in Paris.

Speaking at a Center for Strategic & International Studies forum Monday, Brennan called ISIS “an organization of murderous sociopaths” and said of the Paris attack, “I certainly would not consider it a one-off event. It is clear to me that ISIS has an external agenda and that they are determined to carry out these types of attacks.”

Brennan continued, “I would anticipate that this is not the only operation ISIL has in the pipeline,” using an alternative acronym for the terrorist group.

“It was not a surprise this attack was carried out,” Brennan said. “We had strategic warning. We knew that planning by ISIL was underway.”

Coordinated attacks by ISIS in Paris Friday killed at least 129 people.

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Write to Tessa Berenson Rogers at tessa.Rogers@time.com