ATLANTA—Christine Kannberg, a CNN Headline News graphic designer, expressed befuddlement Monday when asked to create a story logo incorporating a dollar sign, a syringe, fighter jets, and a panda. "I can't even begin to imagine what this one's for," Kannberg said from her workstation. "Maybe, like, the Beijing Zoo was smuggling drugs into the U.S. inside pandas, and we bombed them or something." Last week, Kannberg was asked to create a graphic combining a football helmet, three DNA helixes, a rhubarb pie, and the state of Oregon.