So I would anticipate that this is not the only operation that ISIS has in the pipeline.

  Following the attacks in Paris, police department in several major cities across the United States have ramped up security.  In Washington DC, metropolitan transit police stepping up the controls on public transportation, using bomb-sniffing dogs and additional bagscreening. In New York city two hundred highly trained elite counter-terror forces deployed to protect crowed places, a force that will ultimately total five hundred tactical officers .

  The assignment that you have volunteered, that assignment, there is now no more assignment in the world of policing.

  So-called  are also increasing security. The NSL which already uses counter-terror tactics like metal detectors and bag screening, asked its memebers to further tighten its efforts.

The CIA director acknowledged the ISIS has learned how to stay off the grid to help avoid detection.

  Attorney General said today these encrypted communications are a major concern.

  We are pursuing a number of options. We are in the discussions within the industry, looking for ways in which they can lawfully provide the information while still preserving privacy.