It's about a highway roadblock, part of the "Firearms Inspections to Stop Terrorism" (FIST) program. Things go completely out of control when an old WW2 veteran of the Battle of the Bulge flips out when he sees two black clad BATF JBTs beating and pepper spraying a civilian who refused to open his trunk and get out of his car for a "consent search".
The old vet uses his WW2 GI issue .45 on the "Nazi SS bastards", people panic, and the National Guardsman in the Humvee with the M-60 opens up on the line of stopped cars in the confusion.
You know what, after reading this first excerpt, I'm sure hoping Edmonds get's away so he can serve up a little retribution ... but that's just me.