CNN news:飓风席卷塔斯卡卢萨居民重拾重建信心 You can see the difference best from satellite imagery. This is the corner of 15th and McFarland Blvd., before the tornado hit. Here's an image of the corner just after the storm came through. There's debris everywhere. This is what that same neighborhood looks like today. We're left here with an empty field where these homes once stood. The tornado was on the ground for less than six minutes, and overall 53 people were killed here in Tuscaloosa alone. This is going to be the safe room. This is poured-in-place concrete walls. Residents are rebuilding to be better prepared. You worried this is going to happen again? Yes. I mean, I think it's obvious that Tuscaloosa is on the path now. And though there are signs of progress, As far as being this -- being in this business, I'm not better off till I get the doors open again. e Howell, CNN, Tuscaloosa, Alabama. From Alabama, we're heading north to New York City for what's expected to be a towering achievement. This time-lapse video shows construction at the area known as Ground Zero. It's the site of