It has been 12 years since the towers came down, but the harrowing day is still clearly etched in our collective memory. Perhaps you were in class at school, or maybe you were busy at work; no matter where you were, you likely remember the exact scene. As we remember those we lost and reflect on a day that changed our country, we wonder ... where were you? Share your feelings and memories in the comments, and please be kind to one another. We will pull this post if things take a turn for the nasty.