The full scale of Bush's assault on our civil liberties may not be known until years after he's left office.

At the moment, all we can do is get glimpses here or there of what's going on.

And the latest one to come to my attention is the dispatching of police officers, firefighters, paramedics, and utility workers as so-called "terrorism liaison officers," according to a report by Bruce Finley in the Denver Post.

They are entrusted with hunting for "suspicious activity," and then they report their findings, which end up in secret government databases.

What constitutes "suspicious activity," of course, is in the eye of the beholder. But a draft Justice Department memo on the subject says that such things as "taking photos of no apparent aesthetic value" or "making notes" could constitute suspicious activity, Finley wrote.