Related by context. Frequent words. (Click for all words.) 55 surveillance 46 aerial surveillance 45 raids 44 dragnet 42 warrantless 41 interrogations 40 wiretaps 40 patrols 40 stakeout 39 searches 38 eavesdropping 38 wiretapping 37 inspections 37 reconnaissance 37 Fourth Amendment 37 wiretap 37 law enforcement 36 undercover 36 intrusions 36 sleuths 36 investigations 36 invasions 36 audits 35 snoop 35 law enforcers 35 counter terrorism 35 undercover sting 35 interrogation 35 reconnaissance missions 35 patrolling 35 detain suspects 35 plainclothes officers 35 warrantless surveillance 34 surveillance cameras 34 snooping 34 covert 34 confidential informants 34 plainclothes 34 investigatory 34 trespassers 34 crackdowns 34 assaults 34 apprehend 34 frisk 33 arrests 33 sweeps 33 hideouts 33 enforcement 33 checkpoints 33 suspected terrorists 33 warrantless wiretapping 33 intruders 33 patrol 32 FBI agents 32 Secret Service 32 frisking 32 informants 32 clandestine 32 counterterrorism 32 roundups 32 enumeration 32 investigative 32 vigilance 32 security 32 raid 32 manhunt 32 eavesdrop 32 interdiction 31 weapons caches 31 encroachments 31 CALEA 31 sleuthing 31 civil liberties 31 sobriety checkpoints 31 detain 31 infrared cameras 31 CCTV cameras 31 incursions 31 break ins 31 Drug Task Force 31 dawn raids 31 monitoring 31 cops 31 warrantless wiretapping program 30 sting operation 30 tip offs 30 cyber 30 counterterrorist 30 verifications 30 FBI 30 arresting 30 criminals 30 Patriot Act 30 sorties 30 operation 30 busts 30 enforcement agencies 30 commandoes 30 counterintelligence 30 PATRIOT Act 30 prosecutions