hundreds of thousands of bp emails. what should we expect? >> if they stick to the plan from the perspective of the perspective of bart stup ig, they insist that this is an investigative committee. they want to get to the bottom of what they're looking at enter this particular hearing. which is what happened in the days and weeks leading up to the explosion. the decisions that they made at several different points. in fact, they outlined five crucial decision-making points that the committee says that they've learned through their investigating. bp simply decided to use the riskier and lower-budget way instead of doing something that would maybe put more security measures in place. so what my understanding is that they're going to really try to press tony hayward on why some of these decisions were made. for example, why when they had the choice between two well casings why they chose one that was $7 million to $10 million less expensive. and also people were warning them that it was also much, much more risky. that's just one example.