INTRODUCTION
http://www.nerdylorrin.net/jerry/politics/Warrantless/WarrantlessINTRO.html
 

HOW THE NSA WARRANTLESS WIRETAP SYSTEM WORKS -- An Educated Guess
J. I. Nelson, Ph.D.
http://www.nerdylorrin.net/jerry/politics/Warrantless/WarrantlessFACTS.html
 
 

MINI-TUTORIAL:
THE NATIONAL INFRASTRUCTURES for VOICE and for DATA COMMUNICATIONS
J. I. Nelson, Ph.D.
http://www.nerdylorrin.net/jerry/politics/Warrantless/WarrantlessBKGND.html