Hamas's violence is the reason Netanyahu has not frozen settlement building and why Obama will use it's veto in the UN. Netanyahu doesn't believe extremists will stop violence even if they have a state, so why give up land? Especially when extremists call for complete destruction of Israel, not just a 2 state.
Pakistan air strikes against Taliban kill at least 25 (Reuters)
from the article: Hamas: 'Resistance' against Israel is only option left for Palestinians