The federal government is run by a bunch of perfect strangers. Its laws and regulations are enforced by a bunch of perfect strangers. Violators are prosecuted by a bunch of perfect strangers.
Seeing as how I wouldn't invite a perfect stranger in off the street to live in my home or watch my boys while I'm at work, I don't see why I should trust the government with all the power it has.
The government has to have some power or it's worthless. I have to give the government some trust or risk becoming a gibbering nut.
I will not, however, ever trust it in its entirety, nor will I ever support unnecessary expansions of its authority.