In the first part of this thesis I would like to give you a closer look at the day of September 11, including the antecedents and the aftermaths of it. My aim is to give an overall picture about the whole process of 9/11 including and explaining the roots and the preparation stage of the attacks, their motivation and their effects on economy, religion and politics. In the second part I intend to take a look at the effects of 9/11 on the perception of Human Rights in the United States, with the intention to focus on how are these terrorist attacks influenced Human Rights and the treatment of Arabs and Muslims worldwide, including Governmental restrictions, discrimination, the Patriot Act and the life and abuses of detainees at Guantanamo Bay.