You know what might really help? Ubiquitous end-to-end encryption.

https://www.ft.com/content/2ff5a326-4a01-46b2-af5b-3999a958fe1e

> Ms Gordon believes that agencies have so far had the “luxury” of being able to work at the highest level of secrecy even when not strictly necessary. But they may now be forced to emerge from the bunker. […] UK intelligence officials have been considering for some time how they can operate more openly.