I'm sure those whose agenda is to murder others for Allah are really going to do the right thing and turn themselves in after they modify their weapons for more effective mass murder. Not only brainwashed but maybe also well trained or know someone who is that will keep their mouths shut and are readying the next group.
Alex Jones sent a team of reporters to New York to go into an Islamic controlled town. The government agencies knew who they were and where they pissed and even sent someone to question them. But somehow they missed this shooting and the months and years they were preparing for it. It is much more important to find and monitor critics than terrorist apparently.
So much for the 1st amendment.