I suspect the FBI has a plan, has human intelligence amongst the occupiers, has real time signal intelligence on all of them and is relying on the bitter cold, the remoteness (and its implications for waning media coverage), time, and expertise at back channel negotiations orchestrated with media management - elements which are all on their side.

No, I am not an FBI apologist. I do think that people who believe the government lacks sophistication and a certain necessarily acquired deftness in these situations are deluded. The fear of course is that a gun will be discharged. That will change everything, and what I guess they call "situational awareness" will dictate the nature of the climax and aftermath.