This is a translation of a speech by bin laden from al-jazeera
If there was mistranslation, or fabrication, al-jazeera would be taking on a massive risk to their reputation given their wide readership throughout the middle east. Yes? It’s not like five hundred million Arabic speakers couldn’t point out the mistakes. It is reasonable to assume a translational accuracy.
By ‘scientific thinking’ i’m assuming you mean the scientific method?
Let me finish by asking you, Adel, a question. Exactly what evidence would you require for you to accept the proposition that it is almost certain that the 9/11 attack was carried out by al-Qaeda?