Nyorera kupfuurira kweiyi ndima - Panguva imwe cheteyo, sangano raBin Laden rakashanda nemauto eShia: "MuMuslim mumwe nomumwe, kubva panguva yavanoziva musiyano uri mumwoyo yavo, vanovenga vaAmerica, vanovenga vaJudha, uye vanovenga vaIsrael. Ichi chikamu chechitendero chedu nechitendero chedu". Sezviri pachena rakafuridzirwa nokubudirira kweShia radicalism - yakadai se 1979 Iranian Revolution, kushandiswa kweSharia neAyatollah Khomeini, uye kurwiswa kwevanhu kwakaitwa nevechidiki veShia vechidiki munguva ye1980s Iran-Iraq War. Kunzwira tsitsi uku kwechiShia kungave kwakapesvedzerwawo neidi rokuti amai vaBin Laden vamene vaiva vechitendero chechiShia. Pavaiva muSudan, "vatungamiriri vakuru veal Qaeda vakaramba vachikurukura" neShia Iran neHezbollah, sangano rayo reShia rinotyisidzira pasi pose.... Nhengo dzeAl Qaeda dzakagamuchira mazano nokurovedzwa kubva kuHezbollah. "&lt;ref name="9/11 Commission Report, p.240"&gt;"9/11 Commission Report", p.240&lt;/ref&gt; uko vanofungidzirwa kuti vakakwereta nzira dzekuzviuraya uye kubhomba panguva imwe chete. Nemhaka yokuparadzana kwevaShia nevaSunni, kubatana uku kwaigona bedzi kusvika kure. Maererano neUnited States 9/11 Commission Report, Iran yakarambwa apo yakaedza kusimbisa ukama neAl Qaeda pashure pokurwiswa kwaOctober 2000
, "nokuti Bin Laden akanga asingadi kushatisa vatsigiri vake muSaudi Arabia".