Paul Henry O'Neill (born December 4, 1935) served as the 72nd United States Secretary of the Treasury for part of President George W. Bush's first Administration. He resigned in December 2002 under pressure from the administration and became a harsh critic. O'Neill was chairman and CEO of Pittsburgh-based industrial giant Alcoa from 1987 to 1999, and retired as chairman at the end of 2000. In 1995, he was made chairman of the RAND Corporation.
He began his public service as a computer systems analyst with the Veterans Administration, where he served from 1961 to 1966. He joined the United States Office of Management and Budget in 1967, and was deputy director of OMB from 1974 to 1977.
In 1988, he was approached by President George H. W. Bush to be Secretary of Defense. O'Neill declined, but recommended Dick Cheney for the position. Bush then pursued O'Neill to chair an advisory group on education that included Lamar Alexander, Bill Brock, and Richard Riley. Under O'Neill's leadership, the group recommended national standards and unified testing standards.
O'Neill was chairman and CEO of the Pittsburgh industrial giant Alcoa from 1987 to 1999, and retired as chairman at the end of 2000. His reign was extremely successful, as the company's revenues increased from $1.5 billion in 1987 to $23 billion in 2000 and O'Neill's personal fortune grew to $60 million.
In 1995, O'Neill was made chairman of the RAND Corporation.
(PRHI). They assembled a wide-ranging coalition of healthcare interests to begin to address the problems of healthcare, as a region. PRHI adapted the principles of the Toyota Production System into the "Perfecting Patient Care"
system. Mr. O'Neill became a leader locally and nationally in addressing issues of patient safety and quality in healthcare. 
O'Neill was also pegged by Mayor Tom Murphy as a co-leader of Pittsburgh's Riverlife Task Force, along with the publisher of the Pittsburgh Post-Gazette.
In 2005, O'Neill entered closed-door meetings with the Pittsburgh Gambling Task Force to help them reach a "no-endorsement" stance on what casino to recommend. (News from June 1, 2006)
O'Neill is also a member of Carnegie Mellon's Heinz School's Dean's Advisory Council.
O'Neill was appointed Secretary of the Treasury by George W. Bush. O'Neill was a somewhat outspoken member of the administration, often saying things to the press that went against the administration's party line, and doing unusual things like taking a tour of Africa with singer Bono.
A report commissioned in 2002 by O'Neill, while he was Treasury Secretary, suggested the United States faced future federal budget deficits of more than US$ 500 billion. The report also suggested that sharp tax increases, massive spending cuts, or both would be unavoidable if the United States were to meet benefit promises to its future generations. The study estimated that closing the budget gap would require the equivalent of an immediate and permanent 66 percent across-the-board income tax increase. The Bush administration left the findings out of the 2004 annual budget report published in February 2003.
O'Neill's private feuds with Bush's tax cut policies and his push to further investigate alleged al-Qaeda funding from some USA-allied countries, as well as his objection to the invasion of Iraq in the name of the war on terror - that he considered as nothing but a simple excuse for a war decided long before by Neoconservative elements of the first Bush Administration (2)- led to his resignation in 2002 and replacement with John W. Snow.
In an October 16th, 2007 Op Ed published in the New York Times, he wrote of the reluctance among politicians to address comprehensive reform in the U.S. health care system. In the opinion, he suggests, among other things, requiring doctors and hospitals to report medical errors within 24 hours, as well as moving malpractice suits out of the civil courts and into a new, independent body. Health care reform, he argues, cannot continue to progress in a piecemeal fashion. Instead, it must take all aspects of the problem--insurance coverage, medical costs, quality of care and information technology--into simultaneous consideration.