I had a talk with Roger Dingledine(Director of the Tor foundation/ dev on Tor) about this (specifically regarding the NSA, which is who is one everyones mind I

I had a talk with Roger Dingledine(Director of the Tor foundation/ dev on Tor) about this (specifically regarding the NSA, which is who is one everyones mind I assume). Tor, compromised or not, is completely worthless against an attacker who can monitor the entire network, observe both entry and exit nodes, and correlate packets. The NSA wouldn't bother compromising nodes since they presumably already can see all the traffic and a compromised node might expose them.