While many industry experts say Fannie Mae and Freddie Mac should explore deeper mortgage insurance coverage as an alternative form of credit-risk sharing, some say the role of private MIs is overrated. The Urban Institute recently published a paper advocating a broadening of the credit-risk transfer programs at the two government-sponsored enterprises to include private MI coverage down to the 50 percent loan-to-value ratio. The think tank also encouraged Fannie and Freddie to create a more transparent lender recourse program and to diversify their highly successful debt note CRT programs to provide investors more offerings with risk segmented by LTV ratio and credit scores. Although the Mortgage Bankers Association and U.S. Mortgage Insurers, the trade group that represents private MIs, have stumped...