100% of the exit nodes could be run by the NSA and Tor would still help much, exit nodes are supposed to be untrusted. I think the fact that (most?) DNM operat

100% of the exit nodes could be run by the NSA and Tor would still help much, exit nodes are supposed to be untrusted. I think the fact that (most?) DNM operators keep getting away with it is great evidence that nation states don't have very good visibility into the Tor network.