One year ago today the siege of Beslan began. HBO will be showing a new documentary narrated only by surviving children of Beslan. I won't be able to watch it, but it is supposed to be a ground (and heart)-breaking documentary.
Here's a review from The New York Times and a description from HBO.
Memories of Beslan and the news from the South (particularly when you realize that the poor, the old, the young, the sick, and, let's face it, the "of color" were left to fend for themselves) make this a difficult day.
ETA: Purple Kangaroo has a link to places where you can help with Katrina relief.