Over the past decade, BP vaulted from an energy "also-ran" to one of the biggest companies in the world, gobbling up competitors in a series of mergers that delivered handsome profits for shareholders. But an investigation by FRONTLINE and the nonprofit newsroom ProPublica shows that BP's leadership failed to create a culture of safety in the massive new company. As BP took increasingly big risks to find oil and extract it, the company left behind a trail of mounting problems: deadly accidents, disastrous spills, countless safety violations. Each time, BP acknowledged the wider flaws in its culture and promised to do better. The FRONTLINE/ProPublica investigation shows that the rhetoric was empty. From the refineries to the oil fields to the Gulf of Mexico, BP workers understood that profits came first. (read more »)