senator bob graham, a democrat, and republican william reilly, a former head of the e.p.a., are the co-chairs, and they join me to discuss their findings. what led to your conclusion that this was both foreseeable and preventable, senator? >> first, there's been a major transformation in the off-shore oil industry, up to 1990 it was primarily shallow water drilling. since 1990, the industry have been moving in to deeper and deeper inherently riskier areas. the technology to do that has been fabulous. it's like the space program. unfortunately there wasn't a parallel development of safety required for those deeper drillings and the capacity to respond to an accident to, contain it and to limit its consequences. so this was not a surprise that that likely should occur we found that it was an avoidable and preventable tragedy. >> did you find the three main companies involved, trans-ocean, bp, halliburton were cutting corners, saving money, trying to do something in a way that was just skirting on the edge of security? >> the commission identified close to a dozen decisions, very bad decisions e