What if a document showed up that said Dan Rather was a Child Molestor.
Would it matter if that was a fake?
Sure it would, as soon as Dan Rather came forward with "definitive proof" that he wasn't one.
What do you mean, "if"? Of course Dan Rather is a child molester. I have four memos signed by his parole officer. I admit that these are fake, fraudulent, forged memos, but it's what they say that's important. Don't worry, though, according to Memo #3, as long as Dan takes his meds, he usually only molests older children. Memo #4 assures us that he doesn't flash any more, because the kids laugh at his plumbing.
/tongue-in-cheek