I've been kindof following this since about 4 am, the first time I woke up. At that time, I was thinking it was large, structurally damaging explosions in the subway, where we were going to have lots of dead, and this doesn't look quite that bad. The footage on board one of the trains shows the train still together. Stoopid suicide bombers maybe even.
I worry, though, that they'll cave like the Spanish. I hope not. Oh I hope not.