I don’t think this will be a tough problem to fix.
All that needs to be done is for the cell phone companies to keep a log on texts sent. The police could trace all the texts and work backwards to find out who the instigators are.
Of course if this is the Baraqqis practicing for Nov 2012, Eric Holder might not be of much help here.....
They don’t use texts, they use facebook and twitter on their phones. That much at least has been established in PA. A tweet can go hundreds, and you only have 30 in the store. See the problem?