While I trust the NSA about as far as I could throw the Puzzle Palace, I think you're overstating. Part of their brief, however obscured by their reprehensible

While I trust the NSA about as far as I could throw the Puzzle Palace, I think you're overstating. Part of their brief, however obscured by their reprehensible behavior of late, is to help defend US-based economic interests against foreign intelligence, governmental or private.