Related by context. Frequent words. (Click for all words.) 73 hijacked planes 55 terrorist attacks 54 jetliners 53 twin towers 53 airliners 52 Twin Towers 51 commercial airliners 50 hijackers 50 Airlines Flight 45 Moussaoui 45 terrorist 44 planes 44 terror 44 airliner 43 Shanksville Pa. 43 terrorists 42 shoe bomber 42 jetliner 42 airplanes 42 Al Qaeda operatives 42 foiled plot 41 bombers 41 Zacarias Moussaoui 41 al Qaida operatives 40 suicide bombers 40 al Qaeda operatives 39 al Nashiri 39 aircrafts 39 USS Cole 39 jumbo jet 38 al Qaeda 38 plotters 38 Islamic extremists 38 suicide bombings 38 Khalid Sheikh Mohammed 38 pre-#/# 38 suicide attackers 37 Detroit bound airliner 37 cruise missiles 37 WTC 37 Operation Cast Lead 37 Israeli warplanes 37 al Qaeda operative 37 aircraft 37 Khalid Shaikh Mohammed 36 Suicide bombers 36 terrorism 36 mastermind Khalid Sheikh Mohammed 36 hijacker 36 drone 36 hijacked 36 synagogues 36 bombing 36 Airways Flight 36 bin Laden 36 Bin Laden 36 hijackings 36 subway trains 35 radical Islamists 35 harsh interrogation techniques 35 Bali bombings 35 al Qa'ida 35 Bali bombing 35 Al Qaeda 35 suspected terrorists 35 terror plots 35 warplane 35 atrocity 35 jihadists 35 al Qaida 35 Pan Am Flight 35 enhanced interrogation techniques 35 jets 35 Ghailani 34 Pearl Harbor 34 Islamic radicals 34 drones 34 Awlaki 34 Shanksville 34 attacks 34 Teterboro Airport 34 warrantless surveillance 34 fighter planes 34 Binalshibh 34 warplanes 34 Osama bin Laden 34 waterboarded 34 Ground Zero 34 Umar Farouk Abdulmutallab 33 airplane 33 Flight 33 post-#/# [001] 33 airstrike 33 unmanned drones 33 CIA interrogators 33 Lashkar e Taiba LeT 33 missile strikes 33 trans Atlantic flight 33 plane 33 extraordinary rendition 33 gunships