Gulf oil cap appeared to be holding steady Friday morning, almost midway into a white-knuckle waiting period in which engineers watched the pressure gauges for signs of a leak.
BP oil engineers were back to the slow work of trying to choke a gushing oil well in the Gulf of Mexico with an untested cap.
Tests beginning Wednesday night will determine whether BP can shut the well entirely. The watchword of the latest effort to stem the Gulf oil spill gusher is patience.
Members of a House committee on Wednesday began shaping a bill that targets the problems laid bare by the Gulf oil spill, from lax regulation to inadequate accident-response plans.
Retired Adm. Thad Allen shut down Tuesday a well-integrity test of the Gulf oil spill geyser. BP had been itching to move forward, but government scientists were worried the test may make the situation worse.
The Obama administration on Monday cited control systems on subsea blowout preventers as one reason for its offshore drilling moratorium. But more than a year before the BP oil spill, authorities learned that balky control systems were the most common cause of blowout preventer failure.
Video from the BP live feed Monday night suggested that the new cap is in place. The next 48 hours will be crucial to determining whether BP's latest bid to stem the Gulf oil spill works.
The Obama administration released a new version of its moratorium on offshore drilling, saying the ban was needed to protect against the risks of another accident.
Criticism of Obama for his handling of the Gulf oil spill, though still muted, sounds much like that of President Bush after Katrina.
Offshore drilling chief Michael Bromwich, who started his job three weeks ago as head of the Bureau of Ocean Energy Management, Regulation and Enforcement, says that he is not afraid to put lawbreaking oil executives behind bars.