Answer: I think that the Al-Qaeda group is responsible for the terror attacks on September 11, 2001
Explanation:
The United States authorities have stated that "Osama bin Laden" and his group are responsible for the attacks. His group is called the Al-Qaeda. So, its probably the answer. Hope this helps!
Answer:
The terrorist group that was called Al-Qaeda it was an Islamist group
Explanation:
The navy seal later raided Osama bin Laden he was the mastermind behind it all
