As a former secret 3 letter agency drone I'd like to point out that the internet is the metaphorical iceberg. Time to loosen the tinfoil I think : ) Your 'probably' may (or may not) scale more appropriately as the tip of the tip of the iceberg. Some perspective; A single satellite can relay several thousand unique transmissions. A single piece of fiber can convey orders of magnitude more data again. How much data do we push around daily, not just via the internet, but all networks combined? The NSA has a finite budget, a finite number of people, finite capability, finite everything.