TY  - BOOK
AU  - Doyle, Charles
ED  - Congressional Research Service, CRS. Library of Congress, LC
TI  - National security letters in foreign intelligence investigation : legal background and recent amendments
T2  - CRS report, RL33320
PY  - 2006///
CY  - Washington, DC
KW  - USA
KW  - intelligence
KW  - national security
KW  - security policy
KW  - legislation
UR  - http://www.fas.org/sgp/crs/intel/RL33320.pdf
ER  -