dr. smiddy drives a second health wagon, a tractor- trailer x-ray lab. i guess they taught you something about radiology and all of that in medical school. did theyeyeach you how to drive an 18-wheeler? >> smiddy: i did have to go to tractor-trailer school. and it took a long time. >> pelley: was that harder than medical school, in some ways? >> smiddy: it was very difficult get anyone to insurura doctor believe me. >> pelley: his x-ray screen is a window on chronic, untreated disease, including black lung frfr the mines. >> smiddy: we've seen coal workers pneumoconiosis, emphysema, c.o.p.d., enlarged hearts. there's 15 of the 26 had significant abnormalities here >> pelley: just today? >> smiddy: just today. >> pelley: but when they leave your health wagon, they still don't have health insurance. these things that you're finding? >> smiddy: we negotiate. we can talk to the hospital system. we don't leave any patient unattended. we raise mey for them. >> pelley: you find a way. >> s sddy: we will find a way. >> pelley: they found a way to get glenda moore radiation for her brain cancer. but she'd been a smoker for 25 years, and she died three months after our interview. you don't li