ruadh, with all due respect, I believe you are misinterpreting what the article said. It did not say this is a ‘technologically advanced strain’ of anthrax; what it said is ‘the ability to produce sufficient quantities of anthrax spores as a medium suitable for effective use as an aerosol requires advanced technological ability.’ There’s a big difference there!
We have no evidence that the spores used were ‘technologically advanced’, nor that they were altered in any way to make them suitable for aerosol application. Please note that the infection in NYC is cutaneous, not inhalation. The fact that the spores were inhaled in the FL case appears to be pure coincidence; it was not due to the method of delivery or any special adaptation of the spores, but rather to the manner in which the contaminated material was handled by the victims. And it does not require any special modification to make inhalation possible; inhalation anthrax occurs in accidental exposures all over the world.
Zenster,to my knowledge we as yet have no ‘smoking gun’ - it would be a serious mistake to assume that this is sponsored by bin Laden’s group, and find out instead that it is Timothy McVeigh’s friends!
As far as response - if it is Al Quaida or one of its affiliates, then we are already doing what is necessary to locate the guilty parties and eliminate their threat. If it is not, our response will depend on who the guilty party turns out to be. At the very least, they are guilty of premeditated murder, and should be dealt with accordingly.
The Ryan, you do have a point - it is not necessarily the US that has come under attack, but rather various news media. As an ‘attack’ meant to cause death and destruction, it is woefully inadequate; as a means of causing panic and fear it has so far been incredibly successful. The news is becoming increasingly hysterical, and misinformation, conclusion-jumping, and the publishing of unverified information is rampant, reminiscent of the week immediately following the WTC/Pentagon attacks, when Guilani chastised the media.
I wish everyone would take a moment to ask themselves how we would have reacted if this had happened before 9/11. Certainly there would have been a lot of concern, but I doubt if bin Laden would have even been considered as the most likely source. And, unless thousands of people died (which isn’t likely), I don’t think it would have led to dropping bombs on Afghanistan.
Oh, and Dani . . . er, Bosda - your outstanding calm and coolness in the face of adversity is an inspiration to paranoid schizophrenics everywhere. 
Caught you on preview, Chronos - apparently one of the letters received by NBC - the one mailed from NJ - has also tested positive for anthrax spores. There is also a second NBC employee showing symptoms of cutaneous anthrax.
AP article