It is the ecological disaster that keeps on giving. Jury selection in New Orleans has begun for the trial of a BP executive accused of misleading Congress' investigation of the amount of oil spilled in Gulf of Mexico. Executive David Rainey, former vice president for Gulf exploration is charged with obstructing a congressional investigation into how much oil was surging from the Macondo well into the Gulf of Mexico. He is the most senior company official to stand trial for events related to the largest oil spill in US history. Robert Kaluza and Donald Vidrine, BP supervisors on the Deepwater Horizon [photo] rig face involuntary manslaughter charges for the death of 11 rig workers. A geologist by training, Rainey had no idea how to calculate flow rates from the blowout, yet submitted a lengthy memo to an investigating House subcommittee. He estimated the flow at 1000 barrels to 5000 barrels per day, much lower than it actually was. He was given an internal presentation that put flow estimates at 14,000 to 82,000 barrels per day.