John Gruber, on Daring Fireball:
I wish that Apple would provide a definitive list of all types of data that goes through iCloud, showing what is end-to-end encrypted (iMessage and FaceTime?) and what is not. This whole situations reeks to high hell, but I don’t know what Apple could do other than pull out of the Chinese market entirely.
That’s exactly what they should do — pull out of China entirely. End-to-end encryption doesn’t guarantee complete security, since a lot can be obtained from analysing just the metadata.