We spoke with Mac McClelland about the spread of the invisible disorder that somewhere between 100 and 300-thousand veterans brought back from war …trauma. “Secondary traumatic stress” does not have its own entry in the DSM, and is often called compassion fatigue, a more euphemistic title. Sufferers experience PTSD symptoms, but are often faced with even more hurtles than veterans when seeking help. The important difference people see between the victims of PTSD and secondary traumatic stress is that the latter’s trauma was not originally their own. Mac McClelland wrote an article for Mother Jones’ about the phenomenon of secondary traumatic stress and its affect on the families of returned soldiers. She’s also working on a book about PTSD.