Reporting from Los Angeles and Sacramento -- An ongoing investigation into pension fund corruption across the country intensified Friday as California Atty. Gen. Jerry Brown directed subpoenas at politically connected firms and individuals, according to sources familiar with the investigation. Brown issued the subpoenas as part of a probe into "placement agents" who help secure pension fund investment contracts for their clients in return for large sums of money, often millions of dollars. The subpoenas seek information on the use and disclosure of placement agents and potential conflicts of interest, said sources who spoke on the condition of anonymity because...