Tomorrow is the 20th anniversary of the terrorist attacks on the World Trade Center, the Pentagon, and flight 93 that is generally assumed to have its target the capital but was thwarted by its passengers at the cost of their own lives.

I remember clearly where I was how I heard about the attacks. At the time I was working an overnight shift at a laboratory that performed drug testing for commercial clients. I loaded and ran a large machine that processed the samples. I was far from a scientist but a worker with basic skills and to help pass the hours I listened to radio during the night. Every night as the dawn came atmospheric changes began interfering with reception and usually, I had to shut off the radio for the last hour or so of my shift. On Sep 11th, 2001, just as the signal was degrading beyond usability, I hear the first reports that a plane has collided with one of the towers at the WTC. I assumed it was probably some light civilian aircraft and heard no more as noise swamped the signal.

At the time I used mass transit to get home and at the bus stop a random person was trying to tell me that a tower had collapsed. At this point I still had no confirmed information that it had been a massive airliner and assumed this person was passing on rumor or speculation. (Even before the Internet, Facebook, and Twitter there was plenty of bad and fake information out there.) When I reached the 7-11 just blocks from my apartment, I saw the video playing on their television and understood that the world had changed.