According to the papers leaked by Snowden, the NSA has the ability to intercept communications carried by submarine cables.
My question is: does Tor also use these submarine cables? So, can Tor be monitored through surveillance programs like PRISM or Upstream?
Imagine that the NSA has intervened all submarine telecommunication cables. I suppose Tor uses these cables. So, could the NSA spy on Tor's communications in this context?
(Forgive my English, English is not my mother tongue).