Tucson’s and Arizona’s water supply picture continues a bit murky. Conservation efforts are in place, and cooperation among cities and states is on the rise. But there’s little letup in the long drought conditions. We look at the picture and get assessments from top water officials. Guests: Alan Forest, Tucson Water director David Modeer, Central Arizona Project director Zac Ziegler, Arizona Public Media Mari Herreras, Tucson Weekly Dan Shearer, Green Valley News/Sahuarita Sun