Eric WatkinsOil Diplomacy EditorBP PLC Chief Executive Officer Bob Dudley, in a major speech before the Confederation of British Industry, admitted that the firm's "very existence" had been threatened as a terrible accident grew into a corporate crisis. But Dudley vowed that BP has the resilience to grow as a result of the disaster."This is a story of the damage that can be wrought by a single accident in one segment of a giant company's operations," Dudley said. "From a terrible accident and environmental spill grew a corporate crisis that threatened the very existence of our company—a major loss of value and loss of trust."He said, "This was a de...