CDS on US public debt is more of a toy gun.
Any problem with the US debt will show up as inflationary expectations in the required interest rates since all it currently takes to defuse a CDS on US debt is some paper and ink, printing dollars. As I have written to you earlier, November 21, Dr. Strangelove possesses much real mass destructive power when he rides on the credit ratings, and which is why perhaps a more cautious regulator would request a security clearance for all the individual credit risk raters.
Having said that, in today’s nervous financial climate, even a toy gun could produce panic.