New Snowden docs show more detail on how NSA broke into Google/Yahoo
washingtonpost.com
washingtonpost.com
So, the NSA had physical access to data on-the-fly (obviously, that would not be how you get data that was authorized by a court order). 2 possibilities:
a) They went ahead and broke in physically, or
b) Google installed a tap for them.
http://www.washingtonpost.com/world/national-security/nsa-in...