Hamas leader stated "No Zionist occupying Palestine has right to security." I think that means that Israel has a right to attack all of Hamas as a sworn enemy. This round of Mideast violence is calculated: 1.) Abbas was going to go for limited UN observer status the end of the month, and Hamas wants all or nothing. 2.) With weakened Syria, Hamas is out to make themselves the new conduit of Iran weapons support over a weakened Hezbollah. 3.) The "new spring" Arab leaders have granted Hamas more power to act against Jews. 4.) Hamas has no interest in peace--they only ask for ceasefires so they can get more weapons after stockpiles are destroyed by Israeli military ground and air operations.
U.S. says working on initiative to de-escalate Syria fighting, with focus on Aleppo (Reuters)
from the article: LIVE BLOG: Day 3 of Israel-Gaza conflict 2012