Everything true is false...

In these days of dubious facts and figures, the phrase " better check snopes.com" comes up again and again. Just who is this Snopes, and since when did he or she become an authority on just about everything? A monopoly on the truth? Hmm. Sounds like absolute power to me. What's to stop this invisible Snopes from deciding what should be true and false to benefit their own nefarious ends? So even though one might like the above letter from members of the rock outfit Heart to John McCain to be true, it is, according to Snopes, not. Or is it?