Indictment linked from cnn.com
It seems that they are getting the book thrown at them rather expertly. And that the FBI and ATF have been keeping an eye on them for a while. Basically they are getting charged with the bomb making/teaching, and 'seditious conspiring' as well as attempting to use the bombs, and carrying weapons during the commission of a violent crime.
The weapons charges are basically trumped up in my opinion. They are saying that since they had weapons on them while conspiring it is carrying/possessing/using a weapon during the act of a violent crime. Honestly I don't see how conspiring is committing a violent crime, but I suppose they are saying that conspiring is just as violent as actually committing it.
As of right now cnn is referring to them as a 'Christian warrior' militia. I think the news agencies are worried about how people would react to seeing Christianity linked with terrorism in the states. Too many people believe that Christian automatically means good, and Islam automatically means terrorist. The furthest they have gone is to call them extremists.
I think it's going to be interesting to see if this case ends up setting a precedent towards eliminating the 'legal' militias in the States. And what I mean by legal is the groups that do train as a militia with the fear of and attempt to prevent/react to a 'red dawn' type of scenario. Which in case you don't know is basically another nation invading the US and effectively catching the county off guard and managing to take over almost immediately.
And yes Hairy they do sound like terrorists, and it's a good thing they got stopped. From the sounds of it they were planning a sort of final test run of their plan in which anyone who stumbled onto the 'operation' would be most likely killed or kidnapped. According to the indictment they were going to kill an officer, and then once they had the funeral hit the processional (which would be filled with fellow officers, family, and loved ones) with roadside IED's as well as makeshift RPG's and small arms fire. This would have ended up being a huge tragedy which would have led to a rather long bloody incident between this group and police, and most likely FBI and the military.
I just hope they catch the other two before they try something stupid. The last thing that this country needs is to have two armed men attack a government facility to try and 'rescue' their friends, hopefully they aren't as 'leave no man behind' as the Marines. Not to mention that guys like this are good at leaving and sometimes at hiding. Which is why the case was sealed, if they had caught wind of it they'd have vanished.