>> ray henry, associated press. about those documents that came out last night talking about the methane, possibility of that causing the accident. is bp investigating the methane bubble as a cause of this? >> i should clarify. there's the admiral and lars have discussed numerous times, the government has an investigation. we have an internal investigation trying to figure out what went wrong here. i'm not personally involved in that. my role since the very beginning is to manage our response. i can't actually comment on the status of investigations. >> this is for anyone, actually. i understand there are foreign offers of support and some are actually being actively taken up on including the boom, but as well as oil cleanups and other areas.