Here's the link.
Here's the (paraphrased) synopsis:
Steve Inskeep: The war in Iraq is now projected to wind up costing between one and two trillion dollars. The original Whitehouse estimates were between 50 and 60 billion. Why the discrepancy.
Douglas Holtz-Eakin: War is unpredictable/no one could have guessed the cost/it would have been $50 to $60B if the war had been in-and-out/You can't put a dollar figure on unknowns
SI: But would any credible economist have said at the outset that $50 to $60B was likely a good estimate?
DHE: War is unpredictable/no one could have guessed the cost/it would have been $50 to $60B if the war had been in-and-out/You can't put a dollar figure on unknowns
SI: The war has cost between $5B and $6B since inception. Was the $50B-$60B figure ever realistic?
DHE: War is unpredictable/no one could have guessed the cost/it would have been $50 to $60B if the war had been in-and-out/You can't put a dollar figure on unknowns
And so on and so on and so on. Inskeep offered no serious rebuttal and didn't appreciably follow up on any question other than to ask again in different terms. Of course, there was no counter-opinion by a non-Bush-appointee, so the audience only got to hear the carefully programmed remarks of a loyalist.
Overall, a poignantly missed opportunity.