What is the purpose of Al-Qaeda and their beliefs and customs?

Is Al-Qaeda sinful or against gods (any god) purpose? Is Al-Qaeda fighting for a real cause? Is the clothing requirment by the Taliban excessive or is this what women should wear?

What is the purpose of Western Countries and their beliefs?

Does the Western world commit sins? Is the Western World the World Police? Is it a clothing issue?

What do you think of "The West"

I would like comments from both sides. If you would like me to post a question, just let me know and I will post it for you.

What do you think of Al-Qaeda?

I believe this is the Al-Qaeda Flag or the one used in Iraq. Correct me if I am wrong. Since Al-Qaeda's websites get shut down and some our hidden into other sites I have put down this popular newstation from the Middle East that airs Al-Qaeda information.
I would like both sides to comment on their thoughts and opinions to the title of this post. http://english.aljazeera.net/HomePage