Previously would have been incidentally picked up and retained in a 5 day rolling buffer due to lack of encryption (if your traffic transited one of the tapped

Previously would have been incidentally picked up and retained in a 5 day rolling buffer due to lack of encryption (if your traffic transited one of the tapped backbone links), but now, such queries are encrypted and I believe Google now encrypts transit between their data centers. Now you would need to be more specifically targeted under FISA, if they felt there was valid reason, and the timeframe for collection on that data would vary.