Physical search
(5) “Physical search” means any physical intrusion within the United States into premises or property (including examination of the interior of property by technical means) that is intended to result in a seizure, reproduction, inspection, or alteration of information, material, or property, under circumstances in which a person has a reasonable expectation of privacy and a warrant would be required for law enforcement purposes, but does not include (A) “electronic surveillance”, as defined in section 1801(f) of this title , or (B) the acquisition by the United States Government of foreign intelligence information from international or foreign communications, or foreign intelligence activities conducted in accordance with otherwise applicable Federal law involving a foreign electronic communications system, utilizing a means other than electronic surveillance as defined in section 1801(f) of this title .