Problem is, it can't be used when there is more than one person in the vicinity or they'll blow up the bomber and everyone around him/ her.
Oh, I wouldn't want them to use it when others may be injured. I would just stand the terrorist(s) over by themselves in a safe location and discharge the explosives. I would probably just click the detonator a time or two first, saying oops, this thing must need new batteries before actually "pulling the trigger".