I used to think that killing the guilty ones (and sparing innocents) was enough.
I think we need to deny our enemy their objective. Their objective is a Palestinian state, and the destruction of Israel. So IN ADDITION to death to the guilty, we need to deny the enemy objective:
"Therefore, as a direct response to the attack of 11 September, the United States and Israel should jointly undertake the immediate and complete occupation of all Palestinian territory, the arrest and imprisonment of all Palestinian leaders to await trial after a thorough investigation of their role in the acts of war that have already taken place against Israel, and the permanent incorporation of all Palestinian territory into the state of Israel. No Palestinian self-government should be allowed at any level...
"Can we Win This War?"