National Security Letters in Foreign Intelligence Investigations: Legal Background and Recent Amendments

Doyle, Charles

Library of Congress. Congressional Research Service.

关键词: Business intelligence;    Espionage;    Intelligence activities;    Intelligence services;   

RP-ID  :  RL33320
RP-ID  :  RL33320_2009Sep08

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report discusses the National Security Letters (NSLs), which seek customer and consumer transaction information in national security investigations from communications providers, financial institutions, and credit agencies.