Every time time the feds hire another rude, obnoxious TSA agent, or the city hires another jackass clerk or the state hires another pricky, menacing road reaver, a potential insurgent is created. That's what Steven Metz's study published at the Small Wars Journal seems to say.
"Insurgency arises from a combination of two conditions:", says Metz, "significant unmet psychological needs, and the feasibility of violence (via both attitudes receptive to it and the actual tools of armed action). To grapple with this, a psychological conceptualization of insurgency would be more powerful and useful than a political one."
So I gather the boiling frog scenario doesn't always work after all.