Who said this?

It might not be who you think:

The Department of Justice believes, and the case law supports, that the president has inherent authority to conduct warrantless physical searches for foreign intelligence purposes, and that the President may, as has been done, delegate this authority to the Attorney General.

It is important to understand that the rules and methodology for criminal searches are inconsistent with the collection of foreign intelligence and would unduly frustrate the president in carrying out his foreign intelligence responsibilities.

The answer?

Deputy Attorney General Jamie Gorelick, testifying before the Senate Intelligence Committee on July 14, 2004. She went on to say that the president believed he had the power to order warrantless searches for the purpose of gathering intelligence, even if there was no reason to believe that the search might uncover evidence of a crime.

"Intelligence is often long range, its exact targets are more difficult to identify, and its focus is less precise," Gorelick said. "Information gathering for policy making and prevention, rather than prosecution, are its primary focus."