Borders, settlements, Jerusalem, so called refugees, recources. security. If Erekat thinks this can all be solved within 6 months then the man is dilussopnal. Not even Obama and his anti Israel policies can pull that off especially considering we are not even talking right now. Bibi like Rabin,, Peres, Barak, Sharon and Olmert has agreed in principle to an arab state. The problem in Israel is the political system and coalition partners never agree on anything and what Erekat & Obama need to understand is Israel is a democracy unless there is a Knesset majority there is no deal. Also while some MKS might agree on some issues others they are never all going to agree on everything. The palestinians don't have 1 voice with the authority to speak for them all even Arafat didn't have that and unless all parties accept the deal ( Hamas included ) then no deal. Erekat is dreaming if he thinks this can all be worked out within 6 months & even if we work out some issues within that 6 months when others don't pass then everything breaks down and its square 1 again.
Yemeni ISIS affiliate claims responsibility for Sanaa mosque bombing (Reuters)