ILLEGAL

In justifying the NSA's warrantless surveillance program, Gonzales has argued that the review process required for a FISA warrant is too cumbersome for a program that is of "a military nature" and that requires "maximum speed and agility to achieve early warning."

White House lawyers, in particular, Vice President Cheney's counsel David Addington (who is now Cheney's chief of staff), pressed Mueller to use information from the NSA program in court cases, without disclosing the origin of the information, and told Mueller to be prepared to drop prosecutions if judges demanded to know the sourcing, according to several government officials. Mueller, backed by Comey, resisted the administration's efforts. "The White House was putting pressure on Mueller to broadly make cases with the intelligence," says one official. "But he did not want to use it as a basis for any affidavit in any court." Comey declined numerous requests for comment. Sources say Mueller and his general counsel, Valerie Caproni, continue to remain troubled by the domestic spying program. Martin, who has handled more intelligence-oriented criminal cases than anyone else at the Justice Department, puts the issue in stark terms: "The failure to allow it [information obtained from warrantless surveillance] to be used in court is a concession that it is an illegal surveillance."