Patti ann: the supreme court's healthcare ruling leaves unanswered questions for the nation's hospitals. what about patients who remain without insurance. who will cover their medical costs. jonathon, how will this affect grady memorial. >> reporter: grady memorial, that public hospital, treats 100,000 uninsured patients in a year. last year that treatment amounted to $200 million in unreimbursed costs. many of those charges are passed on to local taxpayers. but the i forwardable care act would change that. listen. >> a third of the patients we take care of at grady have no insurance whatsoeve...