explosive ordnance disposal personnel
Surely their training included removal from their person of anything which has even the slightest and remotest possibility of setting off an explosive? If I go onto certain sites, I have to hand over anything with a battery, transmitter, source of ignition before entering. I'm reasonably confident that bomb disposal peeps are even more aware and strict with this procedure.
I have no doubt orders are flying all over the world now with regard to any devices personal may have to STOP USING THEM NOW!!! while command figures out what to do about it. At the very least, military joggers should be turning off their devices and changing their routes and times with immediate effect.