– are the rating agencies marking down beyond what the underlying cash flows warrant?
– how does the valuation of the underlying collateral affect the valuation of the securities?
– how do you react to market behavior that is unprecedented?
– how effective are / would be hedges to this exposure?
I would open it up to discussion; my impression is that this is a company that is not being completely forthright about its risks. The questioners seemed to have better questions than the company had answers.