Comment by themingus
I'll be curious about what details emerge concerning connections between the hand-held radios and the pagers. Any overlap in the manufacturers? Were the radios new/recently replaced like the pagers? How was the explosive triggered?
I assume it was the same factory, that made the explosive containing batteries.
And then those batteries "just" had to be swapped with the intercepted original ones. Still requires effort, but less than building pagers and walki talkies for this purpose.