The Foreign Ministry is considering easing its evacuation advisory for Iran and three other Middle Eastern countries in response to a deal between the United States and Iran to end their fighting.The plan has emerged as other countries are moving to resume business activities in the Middle East and Japanese companies operating in the region are calling for a lowering of the travel advisory.With uncertainty over U.S.-Iran negotiations growing since the signing last month of a memorandum of understanding between the two countries, the ministry plans to make a cautious decision while closely monitoring the progress of U.S.-Iran talks.