According to a report on Democracy Now and several other sources, the “White House Alters Website To Block Google Archives”
Meanwhile it has been revealed that the White House has manipulated its web site to prevent Internet search engines including Google from archiving portions of the White House website related to Iraq. Over the past few months the White House has come under criticism for altering archived pages as the situation in Iraq worsens. In the most widely noted case the White House altered the headline for its coverage of his speech aboard the U.S.S. Abraham Lincoln. The web page originally read “President Bush announces combat operations in Iraq have ended.” But several months later the text “combat operations” was changed to “major combat operations” as it became evident that the fighting in Iraq had not ended.
This is probably a violation of the Presidential Records Act among other things.