A few weeks ago I posted this link, which had made BoingBoing and Interesting People. It said:

Grand Canyon National Park is not permitted to give an official estimate of the geologic age of its principal feature, due to pressure from Bush administration appointees.

I very quickly had to update the post, as this the national park service had a clear reference to the age of the Canyon on their web page. This story has more detail about the apparent lie.

PEER is an anti-Bush, anti-religion liberal activist watchdog group in search of demons to exorcise and dragons to slay. On one level, that’s how the system works in a free society, and there are plenty of pro-Bush, pro-religion conservative activist watchdog groups who do the same thing on the other side. Maybe in a Hegelian process of thesis-antithesis-synthesis we find truth that way; at least at the level of talk radio. But journalistic standards and scholarly ethics still hold sway at all levels of discourse that matter, and to that end I believe we were duped by an activist group who at the very least exaggerated a claim and published it in order to gain notoriety for itself, or worse, simply made it up.

eSkeptic: There IS such a thing as an anti-christian agenda