Some of the toughest criticism in James Baker's report on the safety of BP's US refineries comes from the company's failure to learn from a series of three incidents at its petrochemical complex at Grangemouth, Scotland, in 2000, writes Ed Crooks.

Between May 29 and June 10 of that year, the complex (pictured right) - which has since been sold by BP - was hit by a power distribution failure, a medium-pressure steam main rupture and a fire in an operating unit that tookmore than seven hours to put out.