This is how its going to go down, IMO:

--Assume Bush and the U.S. authorities have had solid proof of Iraq's WMD program since before they even went to the U.N. in the first place. Probably proof of their support of terrorists as well. Publicizing it prematurely with no one on the ground in Iraq would obviously cause the evidence to vanish instantly.

--Saddam will issue his document this weekend with whatever bullshit he chooses to fill it with. None of it will point to anything except possible decoys. Certainly not to any of the real programs that we know about.

--Here's where the boom is lowered. Several options are available to the U.S. at this point. In one such, the U.S. informs trusted members of the inspection team as to the real locations. They buzz out there, too quickly for the surprised Iraqis to get ready, and uncover the Real Goodies in front of everyone. Saddam is caught in a major violation, and the U.N. has no choice but to acknowledge it. Boom.

There are other ways this could work, but this probably covers the basics.