Dianavan,

I think the timing says a great deal about "why". G8 is an incredible occasion to make a statement, and it makes far more sense that the people behind this were saying that they're still around, still able to bring a city to its knees, and for the leaders of the world not to think this is over.

My friend darkly wondered if there were some very disappointed Parisians behind this, but he was only joking.

This is going to turn out to be Al Qaeda, or another group with much the same agenda.

-E