Here are the unanswered questions. Some early speculation suggested that the pagers could have been targeted by a complex hack that caused them to explode. But that theory was quickly dismissed by experts.

Public opinion polling shows a majority of Israelis believe their government should be taking a stronger stance against the militant group to the north.

Hezbollah has long been seen as the spearhead of the so-called "axis of resistance" against Israel, but is that a position it can maintain following the attacks that saw dozens killed by exploding communication devices this week,