Iran's state TV says the country's central bank chief Mohammad Reza Farzin has stepped down, as the country faces growing protests over the high cost of living.  The move comes after the currency rial plummeted to a record low against the dollar on Sunday.  The central bank has been accused of printing too much money in an effort to shore up the currency, but instead pushing the nation on the verge of hyper-inflation. Also in the segment, the price of silver briefly hit a record high.