a number of disturbing facts of refineries, at the time of the bp texas city explosion, the american institute recommended practice 752 was in use. that recommended practice did not specify any minimum safe distance from having this area of trailers that would use. 15 fatalities at bp texas city all occurred in a trailer that was located less than 125 feet from the explosion and following the explosion, the chemical safety board asked the american patroleum institution to advise or recommend a new practice. a.p.i. did that, however the recommended practice specifically excluded tents and temporary structures. so my question to you is does bp or the industry really think that tents are safer in blast zones than trailers are? >> these are shelters from the elements to protect our workers from sun or rain. they're not there to provide protection from explosions. so, they're really just there to protect them from the elements. i was actually very impressed. they are engineered. >> do you think they're safer than a trailer? the regulation says that trailers -- so instead of using trailers

so outraged by deepwater horizon is because we lived through the reality of a horrible bp explosion at a texas city worst tragedy in its theory and this is a quote. it would do everything possible to make sure nothing like it happens again. >> now it's clear that bp didn't do everything that it could. in the aftermath of the texas city accident, the chemical safety and hazard investigation board urgeled bp to commission a panel to assess the safety procedures. the paper was very comprehensive and included many recommendations for improving soft there. one of their suggestionings was improving the culture of safety. yet in this morning's "new york times," we read a survey in which workers reported they saw unsafe behaviors on the rig, but didn't report them because they were afraid of reprizals. today felt comfortable reporting things to their immediate supervisors but felt corporate level repercussions for anything yont that. the rig was hired by bp to operate the rig. almost everyone choose it is process for tracking safety issues was counterproduct i. one committee report that had the company was