All this talk from governments of secure back-doors "that only they can access - not the naughty people" reminds me of the various, very secret, Seats of Regional Government from the cold war era. These were in secret locations, highly secure and apparently protected against atomic bomb attack. That did not stop a number of their locations being discovered and the installations being vandalised by "naughty people".
Eventually all back-doors would be discovered, somehow, and everyone's security would then be compromised instead of just targeted individuals as now.
Governments seem to have forgotten to include the concept of unintended consequences considerations in their knee jerk responses and law making.