An Israeli attack that targeted Hamas leaders in Qatar this week would not change the Palestinian group's terms for ending the war in Gaza, an official said on Thursday. Israel attempted to kill the political leaders of Hamas with an airstrike on Doha on Tuesday, in what US officials described as a unilateral escalation that did not serve American or Israeli interests. In a televised address, Hamas official Fawzi Barhoum said the strike targeted the group's negotiating delegation while they were discussing a new ceasefire proposal delivered by the Qatari prime minister just a day earlier. "At the moment of the terrorist attack, the negotiating delegation was in the process of discussing its response to the proposal", he said. Qatar...