Thank you, Mr. Chair.
If I could come back to the first question, I think the definitive answer will come with the report of the national commission on the BP Deepwater Horizon oil spill and offshore drilling, which was commissioned on May 22 by President Obama. It's being chaired by Senator Bob Graham and the former EPA adminstrator, William Reilly. We expect that report will be issued in about six months.
We've seen a lot of reports in the media, but they seem to change from time to time. What we need is the definitive report before we actually decide what the actual cause was and what the lessons learned will be. But we are watching very carefully as it unfolds.