[…] Thousands of volunteer are going to Greece in hopes of making even a small dent on the country’s refugee crisis. But, weeks later, many find themselves out of element and out of support. […] It comes down to basic statistics, says Norman Hering, a psychologist from California who started volunteering in Athens full-time in mid-April: “I would bet 99 percent of these people [los refugiados] have post-traumatic stress disorder from their home country.”

“What that means,” he adds, “is, when you come into contact with them, it affects you.” […]