Describe the stereotypes that emerged as a result of the events on 9-11

Basically during that time a group of people decided to hijack three planes one of them was heading for the White House but The plane did not have enough fuel to fly there so the two planes crash landed with a bunch of people in the Plains right through the twin towers. What was going through their head maybe they just didn't have a good life or maybe they just wanted other people to suffer but 911 will be remembered because of how bad the situation was