Alan Greenspan, who was chairman of the Federal Reserve for nearly two decades, in a long-awaited memoir, is harshly critical of President Bush, Vice President Dick Cheney and the Republican-controlled Congress, as abandoning their party's principles on spending and deficits.
  In the 500-page book, "The Age of Turbulence: Adventures in a New World," Mr. Greenspan describes the Bush administration as so captive to its own political operation that it paid little attention to fiscal discipline, and he described Mr. Bush's first two Treasury secretaries, Paul H. O'Neill and John W. Snow, as essentially powerless.
  Mr. Bush, he writes, was never willing to contain spending or veto bills that drove the country into deeper and deeper deficits, as Congress abandoned rules that required that the cost of tax cuts be offset by savings elsewhere. "The Republicans in Congress lost their way," writes Mr. Greenspan, a self-described "libertarian Republican."
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  Of the presidents he worked with, Mr. Greenspan reserves his highest praise for Bill Clinton, whom he described in his book as a sponge for economic data who maintained "a consistent, disciplined focus on long-term economic growth."