YONI BEN-MENACHEM: Frustration and anger are growing in Hezbollah following the elimination of the top "Radwan" force by Israel. 

The Israeli message about the determination to return the tens of thousands of evacuees from the northern border to their homes permeates the ranks of Hezbollah, but Hassan Nasrallah is very careful not to react rashly, for a number of reasons:

A. He wants to thoroughly and carefully prepare a measured military response, which will not drag the region into an all-out war, which will give international legitimacy to Israel for an extensive ground operation in Lebanon.