In a May 1998 interview, Osama bin Laden answered questions posed to him by some of his followers at his mountaintop camp in southern Afghanistan. Here is a key question that answers why he commits terrorism against the U.S.
Q: Many of the Arabic as well as the Western mass media accuse you of terrorism and of supporting terrorism. What do you have to say to that?
Osama bin Laden: There is an Arabic proverb that says "she accused me of having her malady, then snuck away."
Besides, terrorism can be commendable and it can be reprehensible. Terrifying an innocent person and terrorizing him is objectionable and unjust, also unjustly terrorizing people is not right.
Whereas, terrorizing oppressors and criminals and thieves and robbers is necessary for the safety of people and for the protection of their property. There is no doubt in this. Every state and every civilization and culture has to resort to terrorism under certain circumstances for the purpose of abolishing tyranny and corruption. Every country in the world has its own security system and its own security forces, its own police and its own army. They are all designed to terrorize whoever even contemplates to attack that country or its citizens. The terrorism we practice is of the commendable kind for it is directed at the tyrants and the aggressors and the enemies of Allah, the tyrants, the traitors who commit acts of treason against their own countries and their own faith and their own prophet and their own nation. Terrorizing those and punishing them are necessary measures to straighten things and to make them right. Tyrants and oppressors who subject the Arab nation to aggression ought to be punished. The wrongs and the crimes committed against the Muslim nation are far greater than can be covered by this interview. America heads the list of aggressors against Muslims. The recurrence of aggression against Muslims everywhere is proof enough. For over half a century, Muslims in Palestine have been slaughtered and assaulted and robbed of their honor and of their property. Their houses have been blasted, their crops destroyed. And the strange thing is that any act on their part to avenge themselves or to lift the injustice befalling them causes great agitation in the United Nations which hastens to call for an emergency meeting only to convict the victim and to censure the wronged and the tyrannized whose children have been killed and whose crops have been destroyed and whose farms have been pulverized. ...
In today's wars, there are no morals, and it is clear that mankind has descended to the lowest degrees of decadence and oppression. They rip us of our wealth and of our resources and of our oil. Our religion is under attack. They kill and murder our brothers. They compromise our honor and our dignity and dare we utter a single word of protest against the injustice, we are called terrorists. This is compounded injustice. And the United Nations insistence to convict the victims and support the aggressors constitutes a serious precedence which shows the extent of injustice that has been allowed to take root in this land.
John Miller also asked questions, below is an example:
John Miller: Ramzi Yousef was a follower of yours. Do you remember him and did you know him?
Osama bin Laden: After the explosion that took place in the World Trade Center, Ramzi Yousef became a well known Muslim figure. Muslims have come to know him. Unfortunately, I did not know him before this incident. I of course remember who he is. He is a Muslim who wanted to protect his religion jealously from the oppression practiced by America against Islam. He acted with zeal to make the Americans understand that their government was attacking Muslims in order to safeguard the American-Jewish interests