I use MSE and Spybot but never really seem to need them much because I use Firefox with the “No-Script” add-0n. But none of that will stop the Gub’ment if they wish to see what you’ve been looking at and/or download. DPI gives them the ability and since the Gub’ment is intertwined with the ISPs because of the CALEA act its just a matter of a few knob twists that a few bots can be dropped on your system if the Gub’ment wants it done. They don’t need you to click anything at all.
I guess/sounds like, there’s no way to block DPIs, is there?