Just a note to let you know that we've been living this from a really near point of view (the first train exploded more or less 200m from my home, and I heard the blasts while having breakfast), and it has been undescriptable, pure horror, plain and simple.
I don't think Al Quaeda has had anything to do with it, but ETA, but that doesn't matter right now. This has been a day full of grief, sadness and anger, and won't be able to get over it in a long time.
May this never happen again.
Pepius.