Tor is supported by intelligence agencies because of the value it brings to them. For someone undercover, Tor is a great way to keep in touch, and if you're confronted you have a plausible explanation of wanting to buy LSD or watch kiddie porn or whatever most people use Tor for.
I'm not sure DARPA or Naval Research Laboratory are really intelligence agency fronts.
https://www.torproject.org/about/sponsors.html.en
Tor is supported by intelligence agencies because of the value it brings to them. For someone undercover, Tor is a great way to keep in touch, and if you're confronted you have a plausible explanation of wanting to buy LSD or watch kiddie porn or whatever most people use Tor for.