Israel has given final approval to expand a massive settlement project known as E1, that will effectively slice the occupied West Bank in half. It’s been widely condemned by countries such as Britain, Canada and France, calling it a "flagrant violation of international law" and an end to the idea of a Palestinian state. Israeli settlements in the West Bank are considered illegal under international law. CNN’s Nic Robertson visits Palestinian communities who would be forcibly displaced by the plan and explains why it is so controversial.