the smoke momentarily just cleared. one of the striking features had been the amount of smoke that had been passing by. the other notable feature, i don't know if you can see it back near those buildings, train tracks. one of the main arteries. all of the trains going to connecticut and many heading elsewhere. right now, that's shut down. thousands and thousands of commuters could be affected by this blast. i want to bring in my colleague, don lemon, who doesn't live too, too far from here. what are you seeing? >> actually, i'm half a block away from it. an amazing vantage point that i have here. i have been talking to workers who live in the area and see when it happened. they are in the building i'm standing in and the one right