SimilarityRank
surveillance_system 0.742 38173
Surveillance 0.711 38960
intelligence_gathering 0.585 91027
monitoring 0.580 2296
video_surveillance 0.562 73993
detection 0.532 6186
wiretap 0.529 64198
surveillance_camera 0.528 49211
border_control 0.519 58403
reconnaissance 0.516 41387
environmental_monitoring 0.505 56925
privacy_protection 0.504 79319
intelligence_agency 0.504 29992
control_measure 0.502 47018
vigilance 0.501 33919
intelligence_service 0.500 41292
social_control 0.493 75116
CCTV_camera 0.492 58712
information_gathering 0.492 65351
spy_on 0.491 37790
data_collection 0.490 14275
the_NSA 0.487 14598
internal_security 0.486 85993
situational_awareness 0.486 69859
potential_threat 0.485 75216