Undersea cables go to other nations, and thus aren't domestic.
The idea that NSA has 'dozens, if not hundreds' of devices 'in every major US city,' regardless of utility for foreign intelligence, is just rampant paranoia, not much behind claiming that the lizard people are eating our brains while we sleep.
The idea that NSA has 'dozens, if not hundreds' of devices 'in every major US city,' regardless of utility for foreign intelligence, is just rampant paranoia, not much behind claiming that the lizard people are eating our brains while we sleep.