Related by context. Frequent words. (Click for all words.) 58 Philip Zelikow 49 Terrorist Attacks Upon 46 hijackers 45 Homeland Security 43 WHTI 42 mastermind Khalid Shaikh Mohammed 42 Richard Ben Veniste 42 Western Hemisphere Travel 41 al Shibh 41 Chertoff 40 Terrorist Attacks 40 Zelikow 40 adviser Condoleezza Rice 40 Counter terrorism 40 counter terrorism 40 Bernie Kerik 40 undocumented migrants 40 Jamie Gorelick 40 terrorist attacks 40 counterterrorism 40 Homeland Security DHS 39 Michael Chertoff 39 Ajmal Amir Kasab 39 Ben Veniste 39 Immigration 39 hijacker Mohamed Atta 38 Al Jawary 38 combating terrorism 38 Counterterrorism 38 Ajmal Kasab 38 CIA 38 Salim Hamdan 38 Sandy Berger 38 Louis Freeh 38 homeland security 38 Mohamed Atta 37 Khalid Sheikh Mohammed 37 Bersin 37 Terrorism Prevention 37 Ramzi bin 37 Kasab 37 drug smugglers 37 Homeland Security Presidential Directive 37 Khalid Shaikh Mohammed 37 mastermind Khalid Sheik Mohammed 37 Anti Terrorist Squad 37 Immigration Studies 37 Binalshibh 37 counterterror 37 Ressam 36 George Tenet 36 Zacarias Moussaoui 36 antiterrorism 36 terror 36 Alan Bersin 36 Moussaoui 36 cybersecurity 36 Kerik 36 Mohammed Atta 36 CBP 36 Al Ghozi 36 Homeland Security Janet Napolitano 36 Arar 36 Mark Krikorian 36 spokesman Brian Roehrkasse 36 Ahmed Ressam 36 al Qaeda operatives 35 countering terrorism 35 REAL ID Act 35 CBP officers 35 LeT operatives 35 immigration 35 Guantanamo tribunals 35 hijacked planes 35 Malegaon blasts 35 covert CIA operative 35 DHS 35 immigrant smuggling 35 Counter Terrorism 35 James Carafano 35 alien smuggling 35 terrorists 35 Border Security 35 Cybersecurity 35 Juan Zarate 35 Fran Townsend 35 illegal migrants 35 Al Qaeda operative 35 al Qaeda operative 34 D. Negroponte 34 Migration Policy 34 FBI 34 Clandestine Service 34 Russell Defreitas 34 USS Cole bombing 34 Ali Abd al 34 Ahmed Khalfan Ghailani 34 Comprehensive Immigration 34 CSIS 34 Bin Laden Determined 34 Ramzi Yousef