Source: Wall Street Journal
http://online.wsj.com/article_email/...aq6Hm5,00.html
"News that the memo was marked for its sensitivity emerged as President Bush yesterday appeared to backtrack from his 2004 pledge to fire any member of his staff involved in the leaking of the CIA agent's name. In a news conference yesterday that followed disclosures that his top strategist, Karl Rove, had discussed Ms. Wilson's CIA employment with two reporters, Mr. Bush adopted a different formulation, specifying criminality as the standard for firing."
"The paragraph in the memo discussing Ms. Wilson's involvement in her husband's trip is marked at the beginning with a letter designation in brackets to indicate the information shouldn't be shared, according to the person familiar with the memo."