Federal prosecutors have told the public for years that they lack the clear evidence to bring criminal charges against big banks for mortgage security fraud.

But for eight years, a whistleblower at J.P. Morgan Chase told her story of fraud to regulators and government lawyers only to watch the Department of Justice settle with J.P. Morgan Chase out of court with no admission of guilt, and a much lighter penalty that they were able to write off on their taxes.

No more excuses. The U.S. Justice Department must prosecute all Wall Street criminals. Sign if you agree.