Christopher Ketcham, who made a splash early last year with his GQ piece, "Warning: Your Cell Phone May Be Hazardous to Your Health," is back on the EMF beat with a cover story in the latest issue of Earth Island Journal: "Warning: High Frequency." The first warning centered on brain tumor risks; the new one focuses on electromagnetic hypersensitivity. One quote from Carl Blackman of the U.S. EPA highlights how controversial the whole issue is: "With my government cap on, I'm supposed to tell you you're perfectly safe," Blackman tells [a woman whose family and farm animals are bedeviled with health problems after a cell tower was installed nearby]. "With my civilian cap on, I have to tell you to consider leaving." See also the accompanying comments by the editor of Earth Island Journal.