"Dr. Rahmatollah Sedigh Sarvestani is dying. The Iranian sociologist, recently retired from a long teaching career at the University of Tehran, suffers from prostate cancer and a pelvic tumor. With his kidneys failing after chemotherapy, doctors in Tehran have stopped treating him. His last hope is to come to the U.S., where his wife and children are, and where doctors say he could receive potentially life-saving treatment. But the U.S. won't let him in. And they won't say why." - Cora Currier, ProPublica, Nov. 20, 2012.