How do all those cellphone things work? You know the ones bought en masse? No chargers needed?
If I understand this correctly, they have been using ieds' in Iraq, detonated by cell phone.
I have no reason to doubt that a coordinated attack could then be achieved by a mass text / email from one person, sort of like a ping list here.
The head guy pushes send and Ka Bam in multiple locations.
I'm sure some of the vets and those smarter than I can elaborate more on this, in fact I hope they do.