You can't. But a large number of people seem to not care, because they're already so used to putting every thought that pops into their head online where everyone can see it.
Right, but this isn't just about teeny-boppers posting pics of themselves partaking in underage drinking on Facebook. This is about journalists being intimidated by government representatives if they start writing an article on their private computer that is embarrassing to a particular senator. Sorry, but that's in a totally different baseball league.
I agree absolutely. But try explaining that to people whose immediate response to this every time it comes up is "I ain't got nothing to hide, if Obama wants to read my texts he can go ahead and be bored."