Last I checked anything published intentionally to the public by a government agency is free and up for public use by any US citizen or US company (Citation needed by academia, of course) being how it was paid for by public tax dollars. I could be wrong though ... any one else have a better idea?

I'm pretty much positive they are.. But there isn't a joke punchline there. :)

RE: "Terrorist Buster" Logo — Central Intelligence Agency