[giladamar]

As I understand, and I'm not sure many do at the moment, Hezbollah put in a very specific order from a specific supplier. It is not the case that they just used their local/national stores and bought out pagers from some common supply available to ordinary civilians. Their destination was known.

Can't really comment on your paranoia regarding new hardware. I can't say there's no reason not to be with surveillance tools everywhere. However, unless you're putting in orders for a terrorist organisation I don't think you need to worry that the Shin Bet will willy nilly add explosives.