Two tunnels are a dry run.
THREE TUNNELS ARE A FREAKING ATTACK!
If I was the PM of Israel I would notify the UN that due to unprecedented underground infiltration by a belligerent army, Israel would be conducting immediate massive bombing attacks along the border. And that would be all the notice I would give.
Does anyone believe that if these tunnels were not discovered, a thousand Hezbollah Islamopaths wouldn't have popped up under the cover of night and started a mass slaughter?
Enough Bibi. Now is the time to put Hezbollah back in its cave.
Either bomb the border or fill the tunnels with natural gas and explode them all the way back to their origin. Whatever bursts into flame in Lebanon is a valid target. JUST DO IT.