1) The fact is that international terror groups do not do hostage/firearm attacks. They blow things up.
EVERY incedent like this, EVERY suicide bombing is allways undertaken by folks who grww up & live in the same area as the target... Sure, they may have 'help' from outside, but the idea, the C&C is allways local.
We do not have any domestic terror groups of import here... So you can bet quite safely this will never happen here.
Also, remember, these hostages were taken for the express intent of liberating Chechen prisoners. That is why this perticular target was picked: If anything's going to cause the govt to give in, it's to let your buddies go 'for the children'...
So, that in mind, once again, this is never going to happen here. Period. While many of you think from the perspective of a domestic insurgent (eg 'If we were to fight the govt, what would you use') and naturally gravitate towards small arms & small charges, AQ is after maximum economic/political disruption, and they can do that a whole lot easier by blowing up 10 large buildings than by taking over one school... AQ can do ALOT more damage with 100+ Ts by deploying them in bomb attacks, why would they waste resources on a small arms assault? And if you think there were less than 100 BGs in there, you're a bit off... Regardless of what the Russians say...
1200+ hostages requires around 100 captors to control...
2) Our guys would have better communications and equipment (thermal vision, etc)... But any assault on a fortified position is going to be a mess, allways has been...
Think 'Operation Olympic', and remember WHY we never invaded Japan. Same principle....
3) The only thing you can do to 'help' the situation is to have good enough intel to catch 'em before they attack...
4) Were I responding to such an event, I would have used any neccicary force to ensure that the only armed folks around the building were under my command. No cell phones too (jam the frequencies, or get anyone who could call out of the area)...
You have no way to tell the diff betweren concerned parents and terrorist agents on the outside...
The rest is standard hostage rescue tactics, except you're going to need alot more than a SWAT team to take on 100bgs... National Guard infantry would be the best equipped single-unit in the immediate area, most likely. Local PDs or SOs aren't going to have the manpower....