Echelon

A system operated by the United States National Security Agency (NSA), Echelon reportedly

eavesdrops on approximately three billion conversations a day in defense of national security. Echelon apparently can tap any electromagnetic transmission system, including fiber optics, anywhere on the globe.

See also wiretap.

• Figure B-5
• Figure C-1
• Figure C-2
• Figure C-3
• Figure C-4
• Figure C-5
• Figure C-6
• Figure D-1
• Figure D-2
• Figure D-3
• Figure E-1
• Figure E-2
• Figure E-3
• Figure F-1
• Figure F-10
• Figure F-2
• Figure F-3
• Figure F-4
• Figure F-5
• Figure F-6
• Figure F-7
• Figure F-8
• Figure F-9
• Figure G-1
• Figure G-2