A rescue team works following the crash of a helicopter carrying Iranian President Ebrahim Raisi, in Varzaqan, East Azerbaijan Province, Iran, on May 20. West Asia News Agency/ReutersThe chief of staff for the late Iranian President Ebrahim Raisi has revealed new details about the hours after the presidential helicopter went missing.Gholam Hossein Esmaili was in one of three helicopters returning from a dam inauguration ceremony on Iran’s border with Azerbaijan, he said in an interview with IRINN state TV, and reported by Iran’s semi-official news agency Mehr News on Tuesday.The…