Unless TOR runs wires or a satellite signal to your modem from a private ISP then you are still sending traffic through your ISP (Which Government has LEGAL access to any time). Your original IP from your ISP may be invisible to online servers and networks but that is not the method the government/cyber security uses.

You login to bitcointalk.org they have your IP address.
You login to bitcointalk.org under VPN/Proxy they have a different IP address.
You use TOR...

All of the above still does not change the fact all of your communication is coming and going straight through your ISP.