Top Stories for Friday 29 July 2011

Another blow for Christchurch as credit rating downgraded; Bob Parker says no need to panic after credit ratings cut; US congressmen set to vote on Republican debt crisis plan; AB's tri-nations campaign kicks off in Wellington on Saturday; Leaky home offer take up may not meet government expectations; Rich List show very rich are much, much richer 25 years on; Prostitutes says ban from more Auckland streets won't work.