The smoking gun? If you haven't turned on a radio or TV set today, you may not know that today's Washington Post reports that a terrorist group linked to Al Qaeda may have obtained nerve gas from Iraq and smuggled it out through Turkey in October.

If this proves true, then the endgame really is at hand. Even most of us who have opposed the Bush administration's war plans have said that if there were credible evidence of a threat against us, then we should go in.

But Mr. President, please: we need proof. Some of us haven't forgotten the Gulf of Tonkin resolution. Turn the evidence over to the UN Security Council and give it, say, one week to make its own evaluation. If the council agrees that it's credible, then I guess it's bombs away. Ugh.