Health Minister David Clark is warning that it's not just Middlemore Hospital with big building troubles. Middlemore has at least 11 buildings zoned red or orange with leaking, seismic and asbestos problems. Mr Clark said the upcoming Budget would tackle the most pressing problems. Both Mr Clark and his predecessor Jonathan Coleman have denied knowing the extent of the rot and other problems at Middlemore. But documents show both were warned about "poor" and "very poor" hospital buildings in Auckland. Phil Pennington has been investigating the issue, he joins us with the new details.