Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. US Ready to Take Over Oil Response if BP Fails VOA News 23 May 2010 Interior Secretary Ken Salazar, right, and EPA Administrator Lisa Jackson, testify on Capitol Hill, 18 May 2010, before the Senate Environment and Public Works Committee Photo: AP Interior Secretary Ken Salazar, right, and EPA Administrator Lisa Jackson, testify about the Gulf oil spill Capitol Hill, 18 May 2010 U.S. Interior Secretary Ken Salazar says the U.S. government will push BP aside if it concludes the oil company's response to a massive oil leak in the Gulf of Mexico is failing. Salazar said Sunday that he does not have confidence in BP's attempts to contain the oil and called the situation an "existential crisis" for the company. White House spokesman Robert Gibbs told CBS television program, "Face the Nation," Sunday that the Obama administration has "had problems with BP's lack of transparency" about the leak. Gibbs said that the administration has sent a letter to BP asking the company for its most recent data on the environmental damage caused by the spill. He said every part of the government has been activated to stop the massive oil leak, adding that the government "has not stood still" as some critics have claimed. This undated TV image, received from BP and provided by the Senate Environment and Public Works Committee, shows details of the oil spill in the Gulf of Mexico AP This undated TV image, received from BP and provided by the Senate Environment and Public Works Committee, shows details of the oil spill in the Gulf of Mexico BP Managing Director Bob Dudley told CNN Sunday that BP has remained open about its efforts, but has been unable to measure how much oil is leaking. He called the leak "catastrophic for every BP employee" and said there was no one more concerned with stopping the leak.  U.S. Coast Guard Admiral Thad Allen told CNN that the government is not treating the oil leak in the Gulf of Mexico as anything less than catastrophic, but the government is forced to rely on BP to try to plug the leak. BP's Chief Operating Officer Doug Suttles has said if a planned attempt to plug the well with heavy mud fails, BP might not be able to stop the leak until a relief well is ready in early August. On Saturday, U.S. President Barack Obama criticized the "cozy [close] relationship" between energy companies and the government agencies that monitor them. Mr. Obama says regulators need to do more to prevent future spills. The head of the Environmental Protection Agency, Lisa Jackson, was headed to the Gulf Coast Sunday to monitor her agency's response. Oil has reached the ecologically delicate marshlands along Louisiana's coast. Officials in the southern state say they might make sand levees to prevent oil from hitting land, but experts are not sure the plan will work. .