Rev,
I actually started typing this frustrated, but thought twice. Still I'm not going to change what I wrote, just be aware I'm calmer now.
I'm not sure why this topic is so controversial, everybody seems to have their neck hair up.
Anyway, what I wrote a minute ago....
Whoops, I apologize. I didn't mean to sound like I had my hair up. Part of the problem with the internet is often it's hard to understand someone's tone in a nonverbal medium. I should have said something along the lines of "That is a good idea, and it's been implemented."
I thought I was perfectly clear in that snippet you quoted that the only Federal-specific unit I was aware of was the Marine unit.
Also I believe I stated that the NG is, in my opinion, the perfect group to do that job. So I'm glad they already are.
My larger point was that this is kind of a non-issue, a big "what-if" of extremely low statistical probablility.
Almost every country in the world, whether they agree with us on Iraq or not, is now hyper alert about massing of known terrorist associates and of chatter in every spectrum. If the sleeper cells aren't here in CONUS already, they are not going to just trip gaily in. As much as I deride our security theatre and lack of border security, it is just plain difficult to get across the oceans in any numbers with any amount of equipment, even today.
It took everything Al Quaeda had to pull off 9/11 and they came this close to getting caught even without a coherent group of agencies in this country looking for them and with them having more-or-less free rein in Germany and their other training and assembly sites. In today's world it will be just that much harder.
It is as likely that another McVeigh will blow up a high school football game or another what's his name will shoot a few people around Washington as it is that some immigrant will. The realistic threats haven't changed a whit, and can be dealt with in the same manner as always.
There's actually a couple different units. The Marine unit and an Army quasi equiv (Technical Escort Unit) are moreso just normal military units with better MOPP gear. No offense the to CBIRF, they are good at what they do. Agree with ya that the NG is the right choice. The CST's under equipped, under funded and under staffed, but who ain't?
I do have to disagree with ya on one point. Terrorism NBC is a low probability, completely agree with you. However, NBC is NOT a low probability. Gimme the contents of the cleaning supplies under your kitchen sink, and you can create a chemical weapon. Most NBC incidents are accidents, not terrorism. Having someone skilled at detection and throughly skilled at HAZMAT handling is a must. The good news is that experience with routine accidents helps prepare you for 'the real thing' (which isn't, it's a freakin statistical anomoly, but I digress.). The 3rd CST responded to the anthrax letters in Washington. A couple dozen industrial accidents and other ordinary chemical spills gave them the necessary skills to appropriately respond.
I don't think we need to go hog wild on extremely rare events, which terrorism is. The anthrax thing was 'domestic' terrorism. So was OKC and numerous other incidents. Foreign terrorism is very rare, and not an easy thing to pull off. The logistics of such are a nightmare, as you point out. Tis why I go nuts when people proclaim that the Constitution must be gutted to save us from this rare and unlikely type of attack. Natural disasters and simple accidents are often similiar in nature to terrorist attacks, from the technical perspective rather than the psychological perspective. We do need to be prepared for such events. We don't need to go off the handle, as I think our government is doing these days.
My solution to "defending the US" ? Keep the NG decently equipped, keep specialized units/teams well practiced, and hold joint exercises more often. That's it. We don't need a rapid response force of division sized ready to jump anywhere in the US. We need better communication between folks, that's the only real concern with defending the US from foreign attack.