Some servicers might have a tiny bit of risk exposure in the wake of Hurricane Katrina, but the expert consensus is that mortgage bondholders are well insulated from any potential loss. “There are going to be some losses, but they are not going to be huge,” said Susan Kulakowski, a vice president at Dominion Bond Rating Service, who noted that loans in Louisiana accounted for less than 1 percent – or about 70 basis points…