kill operation because during the top kill operation, of course the oil was still flowing up and was not being contained with that cap. so this time around they feel that this is going to be different, that this is actually going to be the start of sort of a one-two punch and slowing down this well, bringing it under control and eventually killing it off with that body kill operation where they will pump heavy mud and cement through that relief well that they're drilling. that should take place about five to seven days, they say, after this static kill operation and doug suttles said in his words he is confident that this is going to work. >> let's hope he's right. jim acosta for us this new orleans, thanks. when it comes to chemical dispersants, how much is too much? we'll talk to a leading expert on the subject, larry mckinney, the executive director of the heart research institute at texas a&m university. we'll talk to ed markey, he's the one slamming bp for