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[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2010/images/06/18/tony.hayward.congress.gi.art.jpg caption="BP CEO Tony Hayward declines to speculate on what may have prevented disaster."]
BP chief's testimony angers lawmakers
(CNN) – As oil continued gushing into the Gulf of Mexico from BP's ruptured deepwater well Friday, the political firestorm sparked by the environmental disaster showed no signs of slowing.
Lawmakers said many questions remained after BP CEO Tony Hayward faced a bipartisan barrage of criticism during a heated day of testimony on Capitol Hill.
"It was frustrating, not just to me but to the American people," Rep. Bart Stupak said Thursday on CNN's "John King, USA."
U.S. Coast Guard Adm. Thad Allen, the government's oil disaster response manager, is expected to brief reporters on cleanup efforts Friday morning.
On Thursday, he said drilling of two "relief wells," viewed as the ultimate solution to the Deepwater Horizon gusher, was ahead of schedule, but he shied away from saying the well would be plugged early, citing the complexity of the operation. Read more
Full coverage | LIVE: Undersea view 
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