Park Slope, 10:18 a.m.
Not a cloud in the sky, except where the World Trade Center used to be. (Wide version.) The second tower collapsed a few minutes after I took this, but I couldn't see it from here. Impossibly sad. (News via Dori.)

12:26 p.m.
The smoke has shifted direction and is blocking out the sun. It smells awful. I'm going to go and see if I can do anything to help. If you're in New York, give blood.

1-3 p.m.

On the Brooklyn waterfront.

People finishing the long walk over the Manhattan Bridge into Brooklyn...

...and down Flatbush Ave.

It's hard to think about anything else.

Jason has links to other news and thoughts. And this.

7 p.m.