Do you ever get the impression the government uses your own computer against you as a weapon?

I have my modem turned off and my data connection disabled on my computer, and my computer still shows that it is connected to a mysterious public network. I just got finished configuring my firewall to block "commonly hacked ports". After I rebooted, half of the ports I just blocked are now showing enabled, and yes, this is with my modem turned off. I am getting the feeling that the US Government is using my computer against me as a weapon. Does anyone else get this impression?