Analysis: How long will Hezbollah's Nasrallah hold back against Israel?

For the first four weeks of Israeli assault on Gaza, Syed Hassan Nasrallah was conspicuously silent. When he finally spoke, a week ago, the world listened anxiously: Would the leader of the Lebanese Hezbollah, the strongest militia in the region, declare a full-scale war on Israel? It was much ado about nothing. In his well-known fiery style, Nasrallah reiterated Hezbollah's views on regional issues and warned Israel. There was no big announcement, and the speech was not followed by fighters storming into Israel or even a token salvo of missiles.