Pacific Gas and Electric…knew in 2008 that the San Bruno gas line that later exploded…had multiple potentially at-risk welds, but decided to spike the system's pressure so it could avoid the possibility of costly inspections, according to a company memo…When the line…exploded…killing eight people and leveling 38 homes, the rupture happened at a poorly constructed weld that could have been detected had PG&E inspected the pipe using high-pressure water…Experts said the newly revealed…memo…indicates that the company feared that the pipeline running through San Bruno was vulnerable and its welds could fail - yet sought to avoid a potential fix….Asked about the 2008 memo, PG&E spokesman David Eisenhauer said…"We've openly acknowledged our operations were not what they should have been, and we are working to fix that. Among many other things, we have a new EVP…of gas operations…[and] we are bringing in dozens of new engineers and are putting into place stronger standards."