"State: PG&E Could Have 'Junked' Pipe in Its System"
"SAN BRUNO, Calif. -- State regulators have uncovered evidence that suggests Pacific Gas and Electric Co. installed 'salvaged or junked transmission pipe' on its natural-gas system in the 1940s and '50s, raising fears that a problem like the one that caused the San Bruno disaster could be lurking undetected, officials said in a regulatory filing Wednesday.