The US Securities and Exchange Commission (SEC) must defend a negligence lawsuit alleging that the agency failed to act appropriately after concluding that Allen Stanford was operating a Ponzi scheme, a judge has ruled. Investors Carlos Zelaya and George Glantz could proceed with a claim that agency examiners determined four times before 2009 that Stanford was running a Ponzi scheme, US District Judge Robert Scola ruled on Friday in Miami. – Bloomberg