DUBAI/ROME (Reuters) – The protracted dispute over Iran’s nuclear program can now be resolved and world powers should seize a “historic opportunity” to clinch a deal, Iranian Foreign Minister Mohammad Javad Zarif said in remarks released on Tuesday. Iran is to meet with the six powers on Wednesday in Geneva for a third round of negotiations in a month, nearly two weeks after the sides neared an initial accord that would curb Iran’s nuclear activity in exchange for limited relief from sanctions. In Washington, President Barack Obama attempted to build support for a prospective Iran deal with skeptical members of the U.S. Senate, some of whom have been considering adding new sanctions on Tehran in a move that the White House argues would harm diplomatic efforts. In another sign of a thaw between the West and Iran, David Cameron telephoned Hassan Rouhani, marking the first time a British prime […]