How did 9/11 affect the culture of the United States?

It has caused more people of all races, colors, genders to spend more time with the ones that they love. Many also have started as a form of patriotism have flown the flag more and taught their children the importance of the American Flag.

Explanation:

This is due to how people have seen that you never know when you could lose someone so the closer you keep them and the more you get to know them the better.