This fascinates, and scares me. I'm not kidding when I say I expect many of these kids to end up enforcers for the state someday. Nor do I believe that the particular peculiarities of this "gang" came solely from teen brains. Get to know Straight Edge:

You wouldn’t expect a splinter faction of teens that rejects alcohol, tobacco, drugs or promiscuous sex to be an active criminal street gang, but in Washoe County that’s exactly what’s happening, authorities say.
In March — following a six-month investigation — Straight Edge was officially classified a gang by the Regional Gang Unit. Nearly every week, gang officers investigate Straight Edge crimes or harassment that doesn’t seem to subside following arrests.
Authorities describe Straight Edge attacks as random, opportunistic, violent beatings that can be spurred by minor comments from nonmembers. Members — who sometimes use bats, shovels, knives, brass knuckles and Mace — don’t engage in violence unless they can outnumber their targets, police said.