Related by context. Frequent words. (Click for all words.) 68 hijacker 58 terrorists 57 al Qaida operatives 56 plotters 55 hijackings 54 al Qaeda 53 hijacked 52 Moussaoui 51 terrorist 51 terrorist attacks 50 jihadists 50 Islamic extremists 50 hijacking 50 bin Laden 49 Zacarias Moussaoui 49 al Qaida 49 Al Qaeda 49 conspirators 48 Khalid Sheikh Mohammed 48 suspected terrorists 48 terror 47 attackers 47 al Qa'ida 47 Osama bin Laden 47 Airlines Flight 47 Bin Laden 47 Islamic extremist 47 hijack 46 Islamic radicals 46 Abdulmutallab 45 Atta 45 hostage takers 44 suicide bombers 44 USS Cole 44 Qaeda 44 jihadist 43 terror suspects 43 Saudis 43 mujahideen 43 bombers 43 Islamic fundamentalists 42 al Qaida operative 42 Islamic militants 42 Hambali 42 radical Islamists 42 pirates 42 Islamists 42 Al Qaida 41 Yemenis 41 jihadis 41 Umar Farouk Abdulmutallab 41 Osama Bin Laden 41 jihad 41 imams 40 airliners 40 militants 40 suspects 40 Osama 40 Twin Towers 40 Ghailani 40 suicide attackers 40 radical Islamist 39 LeT 39 al Awlaki 39 Algerians 39 jihadi 39 extremists 39 mujahedeen 39 terrorism 39 al Shabaab 39 airliner 38 Kasab 38 Somali pirates 38 Abu Ali 38 passengers 38 Islamist extremists 38 assailants 38 plane 38 Arar 37 Muslims 37 accomplices 37 perpetrators 37 Zawahri 37 Terrorists 37 commandos 37 hostages 37 Lashkar 37 detainees 37 extremist groups 37 FBI agents 37 attacks 37 gunmen 37 Yemeni 37 gunman 37 Zawahiri 36 al Zawahri 36 jetliners 36 interrogators 36 operatives 36 Zarqawi 36 Guantanamo detainees