CIA director John Brennan warned Monday that the attacks in Paris were likely not a "one off event" and that he expects ISIL has more operations planned.

CIA director John Brennan warned Monday that the attacks in Paris were likely not a "one off event" and that he expects ISIL has more operations planned.

"I would anticipate that this is not the only operation ISIL has in the pipeline," he said. "Security and intelligence services right now are working feverishly to see what else they can do in terms of uncovering it."