SACRAMENTO — On the same day that FBI agents conducted a very visible raid on the home of the son of Senate President Pro Tem Don Perata, they also quietly executed a search warrant on Perata's Oakland house, a Perata advisor confirmed Wednesday evening. The Dec. 15 encounter was the first time investigators are known to have directly contacted Perata (D-Alameda) as part of the federal grand jury investigation into business activities of a number of his relatives and associates. Several are political consultants who have business relationships with the senator, mostly in his East Bay district. A person familiar...