The rush to reregulate the financial markets after the financial crisis understandably has many concerned about unintended consequences. Regardless of good intentions, the fixes put in place by legislators, central bankers, and regulators no matter how well thought out are bound to affect the complex and constantly evolving global financial markets in unanticipated ways. Professor Roberta Romano of the Yale Law School shares these worries and proposes in her latest paper, "Regulating in the Dark," a mechanism for addressing and remediating the inevitable unintended consequences of hasty financial regulation.