Whenhe was notstudyingscience, geography and math, Besart was seated next to Louhivuori'sdesk, taking booksfromatall stack, slowly reading one, thenanother.
The primary culprit behind the explosion appears to be the blowout preventer, a two-story-tall stack of valves on the seafloor that was built by Cameron in 2001 and designed to guillotine shut an out-of-control well.