'Wait for greater clarity': US Fed to hold off altering interest rates / Bank rate-setter says hold interest rates in August / NS&I increases interest rates on savings accounts - but they're 'nothing to shout about' / JPMorgan Chase's Dimon warned in an annual letter to shareholders that U.S. interest rates could soar to 8% or more in the coming years. / The Fed hasn't touched interest rates since July, but they're still moving. What that looks like for credit cards, mortgages and savings accounts