ISRAEL'S "IRON DOME" MISSILE SHIELD

Recently there was a news on Al Jazeera related Israel's "missile shield" designing which was called as "iron dome".

Al Jazeera, "Israel to deploy missile shield", January 7, 2010. http://english.aljazeera.net/news/middleeast/2010/01/201017123728755169.html

According to the article, missile shield includes short-range missiles, exercised succesfully and Israel's officials declared the system to be active in mid 2010.
There's the tangible point, Israel feels herself to be blockaded by "enemies". It can be underlined that, there are two "state within states" fight with Israel. After 2007 coup, Hamas captured Gaza Strip unilaterally and created an entity despite Oslo process and Palestine Authority. Between December 2008 and January 2009, Israel realized Operation Cast Lead against Hamas. However, Israel was blamed by the world public opinion to use disproportional force on civilian people. On the other hand, Hamas also gained more advantage. Gaza's people lost the war, but Hamas won. Why, Hamas is feeding from the violence and architect legitimacy on the base of grievance.
The other entity occurred in Lebanon. We mean Hizballah. After 1990 Taif Accord all of the armed groups agreed to break the arms except Hizballah. Iran sponsored militant organisation fougth with Israel in 2006 summer. The war was called as II. Lebanon war. But in fact, the war was not realized by Lebanon. Israel made the war with Hizballah. Like Operation Cast Lead, Israel was criticized to use disproportional use to civilian people. However Hizballah congragulated "the victory" in Beirut streets. Southern Lebanon's innocent villagers lost, but Hizballah won.
It can be observed that, there is a new axis against Israel from southwest and north. Southern Lebanon converted to Hizballahistan and Gaza Strip converted to Hamasistan. Both of the regions are not recognized by international law and international system. So these entities are just like black holes. Hamasistan-Hizballahistan axis are not states and do not have to obey international rules. But Israel has to..
Suppose it. Can we compare Quassam and Katyusha missiles with Arrow II's. But there is one more contradiction. Israel has to defend herself. Israel's "missile shield" solution can be understandable; if it can be functional.
Hamasistan-Hizballahistan axis is supported by Iran. Iran applicates "proxy war" against Israel with using the axis. Iran's nuclear targets are part of her "official policy" which to wipe of Israel from the map. Missile shield can be a short term solution to Iran's proxy forces. So, it can be also evaulated to create "deterrence" for Israel's security and integrity.
Even though, to maintain deterrence, Israel will have to plan "nuclear missile shield" in the long term to prevent nuclear attacks from Iran's mullahs' regime.