Your heartrate, brainwaves, and blood pressure will all be fed into a federal database, that also contains your job history, school history, shopping habits, and personal preferences.
All of this will be combined to give a composite "score" for each American.
Your loving federal government will then determine if you pose a "threat" based on how high this score is. Score high enough, and it's off to the FEMA camps.
But it's for the children