This insane idea keeps coming up in crazy rants from individuals but I had never heard of a group entertaining fantasies like this:
In an indictment against the nine unsealed on Monday, the Justice Department said they were part of a group of apocalyptic Christian militants who were plotting to kill law enforcement officers in hopes of inciting an antigovernment uprising, the latest in a recent surge in right-wing militia activity.
http://www.nytimes.com/2010/03/30/us/30militia.html
The "shot heard 'round the world" and the assassination of Archduke Ferdinand were catalysts but only because of seething tensions that were already brewing. Fantasies of kick-starting a war by blowing up a federal building, or flying planes into one, or shooting teenagers at a politically-oriented camp, or shooting cops.... they're just fantasies. The festering tensions they hope to ignite exist only in their own minds. They did not succeed in inspiring others, and only made people hate them. And yet, there are probably still more waiting in the wings hoping to gain credibility and followers via some outrageous violent act.
It's a common thread, and there seems to be a religious undercurrent there too. These people seem to know how to use the interwebs, so why haven't they figured out that they can't inspire loyalty this way?