The indifference with which our intelligence apparatus treats foreigners could easily be (or already has?) turned on U.S. citizens if a similar "deep state" narrative develops in the U.S. All it would take are a couple loosely linked plots successfully pulled off by American citizens to construct a narrative (i.e. rationale) for turning the full forces of the intelligence apparatus onto all U.S. citizens.
[1]http://www.newyorker.com/reporting/2012/03/12/120312fa_fact_...