The US, controlled as it is by the AIPAC lobby (which may now get the exposure it needs in the world press) certainly will veto but they have been powerless in getting the Palestinians to back down. What will be clear by this effort on the part of the Palestinians is that borders will be defined as those that are recognised by the intenational community. It they are to change, then it will be done between two equals at the table. The world can no longer tolerate continuation of the occupation and Israel's violations of the Geneva Conventions. It is no longer just the US that is in control anymore. Given Palestine's recognition by the majority of countries, at that point the issues you raise can be negotiated. Right now we need to hear from the majoirty of the world that Israel's occupation is an impediment to peace, that it is in violation of international law and it must cease and the removla of all colonists to be a topic for discussion.
Brazilian head of UN peacekeeping force in Haiti dies of heart attack (Reuters)