When they get serious about encryption they will make tor illegal as well.
Tor will not hide you from the feds once they decide they really want to go after encryption. They can either own enough endpoints to find you directly or simply go and shut down all the endpoints. Or, If they have other IP leaks that are unpublished...
On the upside they are firing most of the competent people in government so there's a chance the CIA can't do that anymore