On September 11th, 2001, my dad woke me up to tell me that some idiot had crashed a plane into the World Trade Center. We assumed the pilot was drunk, and I went back to sleep. A little later, Dad woke me up again. Another plane had struck the towers. Obviously, this was no accident.
As I drove to Old Dominion University for a class, I listened to the radio as the first tower fell. When I got to school, I sat in the parking garage to hear the outcome. The second tower collapsed, and the reporter announced: "The World Trade Center is no more."
Apparently, few students listen to the news in the morning. In the class I was attending, only the professor and I knew what had happened. I said to the bewildered class, "Remember the World Trade Center? It's not there anymore. Terrorists crashed planes into it."
My professor replied, "Well, we don't know it was terrorists."
We didn't know it was terrorists? One plane could be an accident. Two planes were part of a plan. If the professor had said, "We don't know it was Muslim terrorists," she would have been correct. Although Muslims had attacked the World Trade Center previously, there are at least some non-Muslim terrorists in the world who could have been responsible. But to say we didn't even know that terrorism was a factor, that seemed like sheer nonsense.
As I looked around the classroom, I realized that most people had no clue what was going on, and that the woman who had all the same facts as I did was willfully ignoring the evidence.
Ten years later, I look around and see largely the same thing.