Big brother?

I'm always under the impression that if *big brother* wants to get into somebodies computer they'll find a way no matter what security is in place.

I resign myself to this fact, and at the same time desire security just to keep out malicious crackers that would screw my PC up. I get the impression that big brother would observe and not hiijack a pc, rather they would just *monitor* anybody they are suspicious of for whatever reason. I don't think this can really be answered though can it?