this is bbc news. we will have the headlines and all the maids stories at the top of the hour as newsday continues straight after hardtalk. welcome to hardtlak, i m stephen sackur. if money is power then one of the world s most powerful institution is probably one you ve never heard of. located in oslo and worth more than a trillion dollars norway s sovereign wealth fund owes its existence to the countries vast reserves of oil and gas. it claims to be an ethical investor. so there was some consternation when it appointed my guest today, nicolai tangen as its new boss. is a risk taking, flamboyant hedge fund manager the right man to steer the worlds biggest