Spring singleton beans are supposed to be stateless though, so they can’t be called variables. Maybe the DI aspect of Spring is less relevant today in the micro service era, but in the day Spring helped make layered monolith apps much cleaner.

They collected everything from the US but pretended they could only search comms with at least one non-US party without a warrant (there were no technical barriers to this and Snowden even claimed it would be easy for a low level NSA agent to read the President’s emails). Foreigners may be easier to search without a warrant at the NSA, but using services outside the US gives a greater chance your data isn’t in their database to begin with.