site that have what is called stop farther authority. in other words if they see something that's going on that compromises safety or integrity, they have the ability to stop production. but i'm told that bp doesn't give that authority, that it is further up the chain of command. is that correct? and if so, is that something that bp may consider changes given what's happened? >> on a drilling operation such as this, anyone can stop it. the bp man, the transocean driller, the transocean tool pusher, or the bp well site leader. it requires everyone to agree to continue. and if there is one person who does not agree, then they do not continue. >> so when i'm told that the bp culture authority is different, i have been told incorrectly.