October 1, 2003THE ADMINISTRATIONAn Accusation and a Bush Memo Coming at an Especially Bad TimeBy TODD S. PURDUM and DAVID E. SANGER ASHINGTON, Sept. 30 — The memorandum from the White House counsel on Tuesday morning was terse, and unusual for the Bush administration: The Justice Department had opened a preliminary criminal investigation into the possible leak of an undercover C.I.A. officer's name, and every member of the White House staff was being ordered to "preserve all materials that might be relevant." Over eight years of the Clinton administration, such legal warnings became all but business as usual for White...