OUR national icon is rusting as the world's most relentless paint job fails to keep up. Despite raking in $84.785 million in toll revenue in the past financial year, the RTA yesterday admitted large sections of Sydney Harbour Bridge were rusting and in need of a paint job. Although saying the Bridge's safety and integrity was not at risk, the RTA admitted a section of the 503m arch span overlooking Luna Park needed a makeover. "There is some flaking and minor surface rusting on the northwestern side of the bridge, where paint has broken down due to environmental exposure," an...