dr. kurtzberg analyzed the cells. look under the microscope-- healthy umbilical cord stem cells look like this. the cells we got from stem tech had disintegrated. >> kurtzberg: so these are the cells you purchased, and they are dying or dead. >> pelley: we see all of these dead and disintegrating cells and, essentially, cellular debris. are there dangers of injecting that into someone? >> kurtzberg: there are huge dangers if you injected that into someone's blood or spinal fluid, because all these little fragments and debris would get trapped somewhere in the blood stream and could cause a stroke, or in the brain could cause an inflammatory reaction. >> pelley: this could actually do harm? >> kurtzberg: yes. this could do a great deal of harm. >> pelley: remember, the sussers asked dr. ecklund to treat adam in the u.s. and last winter, he got out of a van to meet gary susser at a florida hotel where ecklund planned to do the transplant. we dug into dr. ecklund's background, and we found things that he hadn't told the s