The Jackson Health System, Miami-Dade County's government safety net for healthcare, is facing growing numbers of destitute people getting free care in its emergency rooms at a time when its tax revenues are falling steadily. And even if the economy turns around, Jackson's leaders say its financial support system is broken and needs to be fixed, either with an additional half-penny sales tax or by setting up a new taxing structure similar to the ones used by public hospitals in Broward County, FL.