The United Nations atomic agency on Tuesday agreed to close the file on Iran’s past nuclear activities, drawing a line under an investigation which concluded that Tehran appeared to have shelved nuclear weapons-related work it carried out until 2009. Diplomats said the International Atomic Energy Agency’s board of Governors unanimously approved a resolution drafted by Washington and five other powers that will close the past nuclear work probe in coming weeks. That will happen once Iran completes other key preparations for the full implementation of July’s nuclear deal. At that point, Iran will also win large-scale sanctions relief. The unanimous backing for the resolution will ease pressure on the Obama administration over the IAEA’s five-month probe , which was the latest effort in a decade of attempts to discover how far Tehran went in gaining nuclear weapons know-how. Iranian officials continue to say Iran’s program was always purely a […]