Two completely different things. Even the UN acknowledges a people's right to resist occupation. 9/11 was condemned by practically all Islamic Scholars.
The first thing I wrote is that they are two very different things, meaning that no, the same logic cannot be used to justify it. It's quite obvious to say the least.
And how about this: are Jewish people allowed to commit war crimes against Arab colonizers whose stated official goal is Jewish genocide ("from the river to the sea")? If not, then why is it different?