The Middle East is on edgeafter a dramatic escalation that saw top Hamas leader Ismail Haniyeh killed in a strike in the Iranian capital of Tehran early Wednesday. Iranian officials are blaming Israel for what they say is an assassination, but a spokesman for Israel's government on Wednesday declined to comment on the death of Haniyeh, Reuters reported. "Israel was very clear - Haniyeh was a dead man walking," Charles Lister, a senior fellow at the Middle East Institute in Washington, wrote in a post on X following the news. "Once out of Doha, it was game time. Coming hours after the killing of Fuad Shukr in Beirut, the Middle East is on an absolute knife-edge now." Just one d