Last week, key Republicans on the House Financial Services Committee asked banking regulators to provide a detailed analysis of a key provision in the controversial proposed rule on risk retention in securitization that could make non-agency MBS issuance unprofitable for issuers. In a letter to the agencies charged with implementing the risk-retention requirements of the Dodd-Frank Act, Republicans Spencer Bachus (AL) and Scott Garrett (NJ) expressed their concerns about the premium capture cash reserve account requirements drafted by the regulators. The PCCRAs would require issuers to hold any premiums...