felicity2010

I believe it is a reply out of politeness. Obama now depends entirely on BP's experts to stem the spill. 公仔箱論壇% x7 ]  N) G; V: W

& M2 S0 ^0 Q8 j* J+ K$ s2 E5.39.217.76tvb now,tvbnow,bttvb% Q" I2 J. I+ L, ]% d: A( g
公仔箱論壇* b& Z( D0 j% T# d6 n9 ?0 c3 W
Admiral Allen said oil still escaped from the vents. If they were closed too quickly, cold sea water could rush in and formed icy hydrates which caused the failure of previous attempt. When they started closing the vent, the pressure inside the containment cap became so high that oil may burst through the seal which is not perfect due to problem encountered when cutting the pipe.