The September 11 of the year 2001- terrorist attack uncovered imperfections in the way the U.S. knowledge group worked. The assault was a progression of four composed fear based oppressor assaults by the Islamic psychological militant gathering al-Qaeda in the United States on the morning of Tuesday, September 11, 2001. The assaults executed 2,996 individuals, harmed more than 6,000 others, and caused in any event $10 billion in framework and property harm.