the best shot at rehab attracted marguerite somers to this tent.go to veterans village of san diego, which sponsors stand down. veterans village is an $8 million a year program, much of it funded by the v.a. it offers nearly a year of inpatient rehab. but it's overwhelmed. funding is limited, and they were taking applications to choose only 68 patients out of the 947 at stand down. >> do you want to get clean? >> yes, ma'am. >> pelley: they were looking for people who seemed motivated. somers wouldn't find out whether she made the cut until the next day, sunday. as we walked around the camp, we found some of the reasons that homelessness among vets is a chronic problem, with a quarter of a million on the streets last year. a lot of it is addiction and debilitating illness. bill yarling was more typical of those at stand down. older, an army medic in the 1980s, he'd been disabled by years of epileptic seizures. here, yarling knew what no one else could see-- that the solider inside hadn't surrendered. he washed off a year of homelessness and, if not