It doesn't hurt to get into that mindset. It can only help keep you alive. And, terrorism is a booming business. According to the U.S. State Department, over the past 10 years the number of terrorist attacks have gone down, but the number of casualties have increased. Everyone wants their own country, and terrorism is a cheap way of conducting war.
Terrorism comes in all shapes, sizes and colors.
In actuality, terrorism cuts across all national borders, regardless of ethnic group. Terrorists can look like anyone, even a neighbor across the street. The point is, people can't tell who is or isn't a terrorist simply by looking at them. In other words, they believe that they can't make an omelet without breaking some eggs. But most people aren't ready to be broken.