The Prime Minister of Israel was quick to respond to the Palestinian reconcilation agreement: "Abu Mazen - You must choose - either us or Hamas!" Abu Mazen could have replied: " You must choose - either us or Avigdor Lieberman! Us or the settlers' Yesha Council".
That is, actually, what Abu Mazen did do exactly six months ago. Binyamin Netanyahu had to decide between negotiating with the Palestinians and freezing settlement construction, or making his peace with the Yesha Council and consigning peace negotiations to a deep freeze. Netanyahu's choice is a matter of well known record.