FBI & Apple are both stupid.
Computers always ends up to be used in a real physical world. This is called the analogic hole.
This has since decades enable to weaken crypto with side channels (temperature of CPU, times of computation, EM radiation, noise of the keys...).
And how useful is it to spend billions of dollars to break new technologies when at the end human will still interact with computers with analog means?
Microphones, cameras are still working. And it covers 30% of the surface of what a secret service requires to be able to know. And cold war has left government with more than enough cheap efficient technologies. Being smart and foxy covers 15%. 5% is PURE LUCK.
Science is about aligning the cost of detection with its efficiency. Crypto is efficiently made so that breaking algorithms is more and more costly. Detection by measure/math is always failing at one point. (false positive/negative)
And what about the remaining 50% ? It is HUMINT. When people love the place where they live and trust their government they are more likely to snitch the criminals. To help keep the social peace.
Yes, social concord is what protect a nation. People feeling united and trusting their own governments.
I think that electronic intelligence is counterproductive.
I also believe we would live in a better world if laws and moral where in sync with who we really are. If we did not required secrecy to be who we are because governments made illegal stuff that are not crime, except in the eyes of a minority.
Education could help too; people when fearful are behaving like dangerous trapped animals. Education purpose is not about making citizens obedient or fearful, it is about making them able to become political leaders themselves.
Every citizens should be trained in the optic they will be a member of the parliament. The next Benjamin Franklin, Roosevelt, JFK, Lincoln ...
USA has beaten the former colonial power with education. Scientific education. It could be time USA become a great nation again.