A report released Friday by the Project on Government Oversight (POGO), a nonpartisan, good-government group, analyzes hundreds of internal Securities and Exchange Commission documents obtained under the Freedom of Information Act and questions the agency’s ability to remain independent given the frequency with which its employees jump between the public and private sectors.

The Washington Post had a preview of the POGO report this morning, noting that the group expresses concern about a “revolving door” through which SEC staffers leave the agency for jobs at law and accounting firms that advise the public companies they once regulated.