The larger point here: Our founding fathers had good reasons for adding the Fourth Amendment to our Constitution. Without rules governing reasonable search and seizure, we'd all be at the mercy of whoever happens to be in power and, say, doesn't like what you posted on your blog or said on Twitter. Let's send the cops to visit your house, turn over a few couch cushions, and see what they find. And if they come up empty today, we can try it again next week. And the week after that. Until you're finally arrested or decide to shut up.
If they can't do it in real life (and they shouldn't), then they shouldn't be allowed to do it on our computers. Simple, really.