http://d.yimg.com/a/p/ap/20100715/ca...IfbdjSCgz5Fg--AP - In a nail-biting day across the Gulf Coast, engineers struggled to make sense of puzzling pressure readings from the bottom of the sea Friday to determine whether BP's capped oil well was holding tight. Halfway through a critical 48-hour window, the signs were promising but far from conclusive.
Source
