Well, it isn't illegal for "us" to log the chatterbox, is it? So the FBI (or the CIA, or the NSA, or any of the other god-knows-how-many intelligence departments the USA has) can do it. Not that I think for one second any of those services is going to say "oh, it's illegal, let's leave them alone". Not to mention foreign secret services. And then I haven't even talked about individuals who can log the chatterbox if they want to.
Not that I think for one second that there's anyone or anything interested in logging the chatterbox who isn't familiar enough with Perlmonks to know at least a handful of tools to log the chatterbox.
If you are afraid of saying something in public that's going to haunt you - don't speak up, specially not on the internet. Because if the internet is good in one thing, it's remembering the things we wish it wouldn't.