That's a fine objective and on Bush's watch I would not anticipate any fear of that going astray for political reasons. A President Hillary would be another story.
I agree with your worry about a Pres. Hillary. We need to make sure there isn't one.
So the picture the MSM paints of NSA spooks sitting in a unmarked van listening to your call to Aunt Edna is not what is really happening.
I would imagine that these calls are intercepted even before they get to the USA.