Palestinian Authority Chairman Mahmoud Abbas is to meet with Hamas leaders in Cairo Thursday to sum up a unity deal based on “resistance,” a Palestinian Authority state based on the temporary 1949 Armistice Lines and non-recognition of Israel. Abbas, head of the rival Fatah faction, formally signed a formal unity agreement with Hamas in May, but it quickly became nothing more than a ceremonial act following disagreements. The failure of the Palestinian Authority to gain admittance as a full member in the United Nations has been a game-changer. Following the American and Israel decision to cut off funds to the...