(a) (1) Notwithstanding any other law, the President, through the Attorney General, may authorize electronic surveillance without a court order under this subchapter to acquire foreign intelligence information for periods of up to one year if the Attorney General certifies in writing under oath that- (A) the electronic surveillance is solely directed at- (i) the acquisition of the contents of communications transmitted by means of communications used exclusively between or among foreign powers, as
As used in this subchapter: (1) The terms "foreign power", "agent of a foreign power", "international terrorism", "foreign intelligence information", "Attorney General", "United States person", "United States", "person", and "State" shall have the same meanings as in section 1801 of this title. (2) The terms "pen register" and "trap and trace device" have the meanings given such terms in section 3127 of title 18. (3) The term "aggrieved person" means any person- (A) whose telephone line was subject