Got it.

So we've got some pretty schmancy code that automatically parses and embeds things like youtube, flickr, etc URLs and embeds the content into the page.

That same code also parsed wikipedia links, and embedded the first paragraph of the story in the page. It was freaking out over some internal muckings. So, that's been fixed, and the code simply revised to show a nicely titled link. (Which I think is nicer anyway!)

The page now works, and all's well in the world.