(CF / 01-06-10)  The U.S. government fears that BP is unable to stop the oil spill until August, when they finish building relief wells under the seabed. “We are preparing for the worst” said Carol Browner, Obama's adviser about Energy and Climate, to the CBS and NBC.

Browner said the Energy Secretary and Nobel Laureate in Physics, Steven Chu, personally ordered to stop the operation 'top kill', fearing that the injection of mud at high pressure could make the oil leak worse. Chu himself has expressed the same reservations to the next method that BP wants to try: a containment hood that would need to cut a well pipe of the broken well with RC robots.

“We possibly will have to wait until the relief wells are built to stop the spill” admitted Browner. Obama’s advisor highlighted that they have demanded the British company to drill two alternative wells to get greatest guarantees of success.

The two pipes, currently under construction, will try to intersect the broken well and capture the flow of oil under the seabed directly. The estimated time for building it is from 90 to 120 days, so they won’t be operative until August at least.

Robert Dudley, BP Managing Director, admitted to ABC that the end won’t be until three months probably, although he promised “to double efforts” to stop the spill and prevent oil reaching the coasts. Regarding the failure of operation 'top kill' he did not want to give details: “there was too much oil flow”.

Problems between Obama’s Administration and BP because of unsuccessful methods have reached the controversy about the real dimensions of the spill in the Gulf of Mexico, in the last hours. Carol Browner emphasized that “we are possibly facing the greatest environmental disaster in U.S. history.” The White House advisor suggested that BP has an “economic interest” in minimizing the impact "because they will pay in proportion to spilled barrels.”

Robert Dudley said that the first estimate of the spill (800,000 liters per day) was carried out by government agencies from satellite images. The Managing Director of BP does not think new estimates of Geological Services are correct. According to them, they have been spilled from 70 to 140 million litres every day (compared to 40 million in the Exxon Valdez accident).

Urged on by every one, after the failure of operation 'top kill', the Executive Manager of BP Tony Hayward apologized himself those affected by the oil spill: “I am sorry. I am sorry for the massive disruption of your lives that the spill has caused. Nobody wants more than I do that all this finishes already”.