What are the major issues that keep securitization professionals awake at night? Credit and operational risks, mostly, a new survey by rating agency Standard & Poor’s reveals. The poll of nearly 200 investors, securities underwriters and issuers asked participants to rank the most important areas of risk in the market. Perhaps not surprisingly, a wide majority, 79 percent, placed traditional credit risk at the top of their list. But more than two-thirds of respondents…