Because they are STUPID. The one way we have a shot of this story gaining legs is if the conservative press (National Review, the talk radio behomths, FOX News, etc...) run with the story and some of them launch their own investigations and prompt a more "lib" national outlet to 'bite.' Free Republic is the first place for this to happen.
Let's hope this story does not disappear. No wonder Gray is friends with Condit. They must practice their techniques together :(