HOUSTON (Reuters) - Last Wednesday, five weeks into the worst oil spill in U.S. history, BP Chief Executive Tony Hayward locked himself in a room on the third floor of the British oil giant's U.S. headquarters in Houston.
For the next five hours, Hayward, BP executives, senior engineers and the U.S. Energy Secretary and Nobel Physicist Steven Chu, who had flown in two days earlier, grappled with the latest plan to stem the thousands of barrels of oil a day gushing from a broken well at the bottom of the Gulf of Mexico.
