Excerpt - WASHINGTON -- Federal Bureau of Investigation agents raided the Office of Special Counsel here, seizing computers and documents belonging to the agency chief Scott Bloch and staff. More than a dozen FBI agents served grand jury subpoenas shortly after 10 a.m., shutting down the agency's computer network and searching its offices, as well as Mr. Bloch's home. Employees said the searches appeared focused on alleged obstruction of justice by Mr. Bloch during the course of an 2006 inquiry into his conduct in office. ~ snip ~