Access is access. Regardless of whether it's enabled by real time interception, SSH, remote desktop, FTP, a rich web app UI, or snail-mail based optical disk exchanges.

And besides, whatever PRISM may or may not be, it's pretty clear MUSCULAR would fill in any gaps, and dispel your claim of mere theories, in favor of reality.

https://news.ycombinator.com/item?id=6641378

NSA infiltrates links to Yahoo, Google data centers worldwide (washingtonpost.com)

http://www.washingtonpost.com/world/national-security/nsa-in...

I mean, you gave the top comment on that thread, after all.