is fight,iran talks 'not linked
beijing;us secretary of state john kerry said there was no link between talks over iran's nuclear programme and the fight against the islamic state, refusing to comment on a letter from president obama to islan's leader."the nuclear negotiations are on their own, they're standing separate from anything else and no discussion has ever taken place about linking one thing to another," Mr kerry told reporters in beijing on the sideline of an Asia - pacific economic cooperation forum ." i'm confident has been doing and saying with respect to this issue."