Terms: Canary Trap (637), SigInt (454,000),
Canary trap - Wikipedia, the free encyclopedia
Terms: signal intelligence (87,900), signals intelligence (481,000),
Boolean: terrorists AND signals AND noise (116,000), intelligence AND noise AND (terrorist OR terrorism OR terrorists) (731,000),
Boolean: intercepts AND noise AND terrorists (2,710),
Boolean: noise AND "cell phones" AND weather (323,000), noise AND "cell phones" AND static (106,000),
Boolean: "bin laden" AND noise (383,000), "bin laden videos" AND noise (51),
Terms: background noise (1,820,000), ambient noise (575,000), electromagnetic noise (42,100), instrument noise (10,800),