Here's an on-line interview with Kenneth Pollack, author of The Threatening Storm (via Andrew Sullivan).

It's not that long, go have a read. Here are some highlights anyway:

In point of fact the Blix Report was kind of stunning. It was an incredible indictment of Saddam Hussein. He said flat out: they are not cooperating. They are giving us cooperation only on process. They are not giving us any cooperation on substance.

and...

People are constantly saying ... they use this silly courtroom analogy of innocent till proven guilty. And of course it is silly because this is not an analogous situation. This isn't a courtroom. There's no court of law here.

But you can actually turn that around and say 'Look, if this were Columbo or Perry Mason they would have an incredibly damning case to make. Imagine Saddam Hussein on the witness stand. And you put it to him exactly the way the president did last night. 'Saddam Hussein, you have admitted that you manufactured VX. We also have receipts that show that you purchased the following chemicals which have very limited uses, one of which is making VX. Where are those chemicals?'

and...

It's just that I believe that they're working just as hard on the nuclear and ballistic missile side as they are on the chemical and biological side. It's just been my experience that every time the IAEA says 'We've got this thing under control. We know exactly what they have' we find out later that they absolutely didn't. Again, one of the things that has been most important to me is talking to the inspectors., the inspectors who were responsible for this program during the 1990s. Every one of which I've spoken to believes that the Iraqis somewhere have a clandestine centrifuge program.