Mike,
First, I'd suggest that you get in touch with John P. Sullivan and Robert Bunker. I'll send you an email tomorrow with contact info.
Second,
I would define criminal insurgencies as economically motivated non-political groups (narcos, pirates, gangs) that USE VIOLENCE IN ORDER TO GAIN POWER TO successfully control terrain and gain autonomy from government control.
This definition fits Mexico and parts of modern Guatemala; however, the broader history of Guatemala ranging back to the post-WWII civil war is much more complex.
Mike
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