I've always thought that Dan Rather's report was accurate...

[A Black Falcon]

By that standard, I could just write a speech by Abraham Lincoln about human rights and standing for them and all that noise and you'd say it fits with what we know about him so it must be real.

Not necessarily, we know that he didn't exactly say that he thought black people were equal to whites (no person would ever have gotten elected back then if they'd said that), just that they shouldn't be enslaved...

And there'd need to be actual evidence (in this case from the text and beyond), like there is here, not something that's obviously just a faked document.