Britain's Cameron telephones Rouhani ahead of Geneva nuclear talks

In another sign of a thaw between the West and Iran, British Prime Minister David Cameron telephoned President Hassan Rouhani on Tuesday, marking the first time a British prime minister has called an Iranian president in more than a decade.
"Both leaders agreed that significant progress had been made in the recent Geneva negotiations and that it was important to seize the opportunity presented by the further round of talks which get under way tomorrow," Cameron's office said in a statement.
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.