Iran has signaled that there has been “no tangible progress” in the talks with the U.S. on a potential deal while the Israel-Lebanon ceasefire announced by the United States overnight appears shaky. “No tangible progress has been achieved in the negotiation process,” Iran’s Foreign Minister Abbas Araghchi was quoted as saying by the semi-official Iranian news agency Tasnim. The U.S. and Iran have been exchanging messages on a framework proposal for a potential agreement for weeks. The oil market has reacted to each…