shocking example yet. in cnn's on going investigation of u.s. military veterans dying while they wait for medical care at va hospitals. we've uncovered just how far one va hospital went to hide its a doctor who has left the hospital says managers were actually keeping two waiting lists, a sham list that made the hospital look like a model of efficiency, and a secret list that showed the deadly reality. here is senior investigator correspondent drew griffin. >> it was a plan by top management at this veterans hospital in phoenix, arizona, to hide as many as 1,600 veterans, waiting many months, just to get a doctor's appointment. cnn has learn at least 30 veterans left waiting for care,