> But going dark is broader than encryption; it involves the decreasing ability of the government to conduct effective lawful surveillance for many technical reasons, including but not limited to the widespread adoption of encryption technology.

The 'going dark' boogeyman - how predictable. Only in the mind of a spy agency shill does the rapidly growing number of surveillance cameras, facial recognition, flying surveillance drones with high-resolution cameras over cities, and interception of all communication metadata (if not the content), equate to decreasing ability. They won't be happy until we are stripped of even the last tiny scrap of privacy.