Ceasefire talks between Israel and Hamas have stalled, and Gaza risks sliding back into war. This week an Israeli air strike killed the son of Hamas's leader and chief negotiator Khalil al-Hayya, and Palestinian sources confirmed to the BBC that the two sides had reached a deadlock in negotiations. Israeli media reports suggest Israel is preparing to resume fighting in the Gaza Strip because of the impasse and Hamas's refusal to give up its weapons. "We understood, everyone understood that