Wellà News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Of the blowout preventer, which is above the well that's supposed to close it down in times of emergency which appeared not to work. >> that's the big question. how does that not happen? how does a fail-safe procedure fail? >> i would defer to secretary salazar for follow-on comment. basically it's a multi-stage device that sits above the welló head that can cut the pipe, crimp the pipe or put a rubber seal around it. there are various levels that can be actuated. it appeared it didn't acted ate. i would defer to secretary salazar. >> secretary salazar, before you address that, i think anothe...

Operated vehicles. everything is being done because it looks like we had a failure of the blowout preventer, which is above the well that's supposed to close it down in times of emergency which appeared not to work. >> that's the big question. how does that not happen? how does a fail-safe procedure fail? >> i would defer to secretary salazar for follow-on comment. basically it's a multi-stage device that sits above the welló head that can cut the pipe, crimp the pipe or put a rubber seal around it. there are various levels that can be actuated. it appeared it didn't acted ate. i would defer ...