In this photo provided by the U.S. Geological Survey, scientist Paul Hsieh is seen in California. A new study from the presidential oil spill commission describes the behind-the-scenes, excruciating tension and mistakes behind the three-month effort to cap the busted well in the Gulf. Details include the story of Hsieh, a lone scientist working from a cell phone photo, who saved the day by convincing the government that a cap it considered removing was actually working as designed. (AP Photo/U.S. Geological Survey)
