from the scientific communities, tall best minds in the united states that we can get working on i. wherever we re at, i won t be a thad allen decision. it will be the whole world. reporter: he describes the atmosphere instied bp command center where hundreds of people have been working around the clock. when that cap got put into place, what was it like? cheers? it s like a war room except everybody s more informally dressed. it s called the hive. it s actually pretty quiet. reporter: allen said no one stood up and cheered but there was a sense of optimism. we got a sense of the room called the hive during a recent visit to bp s command center. roger that. reporter: i had to speak inhushed tones.