The report, crafted by law firm Cleary Gottlieb Steen & Hamilton and released this week, was commissioned by the FDIC after a WSJ investigation in November revealed a toxic workplace culture at the agency. Investigators spoke to more than 500 employees at the bank regulator out of fewer than 6,000, most of them current, who “painfully and emotionally” recounted their experiences of misconduct at the agency, the report said.