Brisbane news live: Transport costs plunge; Residents step up fight to save Victoria Park; State’s credit rating at risk, Treasurer warns  Brisbane TimesQueensland Treasurer David Janetzki warns there's a 'growing risk' of state's AA+ credit rating being downgraded  ABC NewsCredit rating at risk for first time in 15 years  The Canberra TimesLabor’s final insult: Credit rating faces first downgrade in 15 years  Courier MailWhat Qld’s credit rating cut could mean for you  Geelong Advertiser