US President Joe Biden said on Thursday the killing of Hamas’s political leader Ismail Haniyeh was not helpful for reaching a ceasefire in Israel’s war on Gaza. There has been an increased risk of an escalation into a broader Middle East war after the assassination of Haniyeh in Iran drew threats of retaliation against Israel. Hamas and Iran’s Revolutionary Guards confirmed the death of Haniyeh, who had participated in internationally brokered indirect talks on reaching a ceasefire in Gaza. Anxious residents in Israeli-besieged Gaza feared that Haniyeh’s killing on Wednesday would prolong the …