CIA believes there is large cadre of ISIL fighters ready to attack in US and Europe

CNN:

ISIS has a "large cadre of Western fighters" who could attack in the West and is continuing to inspire sympathizers with no "direct links" to ISIS to attack on their own as it did in Orlando, the director of the CIA will warn this morning, according to excerpts of his statement to the Senate provided to CNN.

"We judge that ISIL is training and attempting to deploy operatives for further attacks. ISIL has a large cadre of Western fighters who could potentially serve as operatives for attacks in the West. And the group is probably exploring a variety of means for infiltrating operatives into the West, including refugee flows, smuggling routes, and legitimate methods of travel," CIA Director John Brennan will tell the Senate Intelligence Committee on Thursday morning.

Brennan also says despite all the efforts by the U.S. against ISIS, it has not stopped the group.

"Unfortunately, despite all our progress against ISIL on the battlefield and in the financial realm, our efforts have not reduced the group's terrorism capability and global reach," Brennan will say.

"The resources needed for terrorism are very modest, and the group would have to suffer even heavier losses of territory, manpower and money for its terrorist capacity to decline significantly," Brennan will say. "In fact, as the pressure mounts on ISIL, we judge that it will intensify its global terror campaign to maintain its dominance of the global terrorism agenda."
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The current operations are not enough to deter ISIL and its leadership and they probably believe that the Obama administration is not going to make a direct attack on their headquarters.  It is going to take a major operation that destroys their ability to make war.