合衆国法典第50編第1802(a)(1)条 50 U.S.C.§ 1802(a)(1), Conditions under which the President, through the Attorney General, may authorize electronic surveillance without a court order
合衆国法典第50編第1802(a)(3)条 50 U.S.C.§ 1802(a)(3), Requirement of the Attorney General's to file reports under seal on warrantless surveillance to the FISC
合衆国法典第50編第1802(a)(2)条 50 U.S.C.§ 1802(a)(2), Requirement of the Attorney General's to report on compliance with warrantless surveillance requirements to Congress
50 U.S.C. §1802 (a)(1)(A) The limitation of warrantless surveillance to foreign powers as defined in 50 U.S.C § 1801 (a) (1),(2), and (3)
Rosenbach, Eric, and Aki J. Peritz. Confrontation or Collaboration? Congress and the Intelligence Community. Belfer Center for Science and International Affairs. June 12, 2009. Harvard Kennedy School. July 21, 2009 <http://belfercenter.ksg.harvard.edu/files/IC-book-finalasof12JUNE.pdf>.