Re: Data wasn't transferred to the US
"[...] data was never transferred to the US. It has only ever existed in the US [...]"
Yes, the data was transferred to the U.S. When data is being accumulated by the likes of Facebook from an entity (e.g., a user) being at that time outside of the U.S. and added to a database being handled from inside the U.S., then that data is transferred. After all, Bacefook does have more than enough servers outside the U.S. to handle all data from its non-U.S. users, but prefers to collate its databases inside the U.S.
I don't blame them for that as such; after all they have to please their shareholders. But can you guess why I'm not using their services and probably never will?