Two spills in 2008 affected about 35 sq miles (90 sq km) in southern Nigeria, according to a group suing Shell…Shell "dismisses the suggestion that it has knowingly continued to use a pipeline that is not safe to operate,"…The emails, letters and internal reports submitted to a court in London show that senior Shell employees were concerned before the spill that Shell's pipelines in the area had reached the end of their lives and needed replacing to avoid danger to lives, the environment and the economy…"The decision by Shell to continue pumping oil through pipelines which they knew were not fit for purpose is quite shocking," said Martyn Day, a senior partner at Leigh Day, the lawyers representing the community filing the claim…