Why did they lie? Because they have no concern for any consequences? They believe they can get away with anything with the present comatose press...and they have been proven absolutely correct.
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http://www.nytimes.com/2004/03/18/politics/18MEDI.html?hp=&pagewanted=print&position<snip>
WASHINGTON, March 17 — Late one Friday afternoon in January, after the House of Representatives had adjourned for the week, Cybele Bjorklund, a House Democratic health policy aide, heard the buzz of the fax machine at her desk. Coming over the transom, with no hint of the sender, was a document she had been seeking for months: an estimate by Medicare's chief actuary showing the cost of prescription drug benefits for the elderly.
Dated June 11, 2003, the document put the cost at $551.5 billion over 10 years. It appeared to confirm what Ms. Bjorklund and her bosses on the House Ways and Means Committee had long suspected: the actuary, Richard S. Foster, had concluded the legislation would be far more expensive than Congress's $400 billion estimate — and had kept quiet while lawmakers voted on the bill and President Bush signed it into law.
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These conversations among three government employees — an obscure Congressional aide, a little-known actuary and a high-level official — remained secret until now, and Ms. Bjorklund still does not know who sent the fax. But Mr. Foster went public last week, and details of his struggle for independence within the Bush administration are now emerging, raising questions about whether the White House intentionally withheld crucial data from lawmakers.
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