Points of fact

"Defending its decision not to commit forces to the Tora Bora campaign, members of the Bush administration -- including the president... -- have continued to insist, as recently as the last presidential campaign, that there was no definitive information that Mr. bin Laden was eve in Tora Bora in December 2001." The Times Magazine ("Mr. Bin Laden" indeed)

Why is it that the Bush administration and the right in general insists on such exhaustive evidentiary standards in some cases, and none whatsoever in others. Not enough evidence that Bin Laden was at Tora Bora but enough of WMDs in Iraq to go before the Security Council and lie. Global warming? What's that? Prove it to me. Evolution? A theory. But gay marriage is obviously the downfall of western society as we know it, without any evidence, etc. etc.