. >> 6-year-old song had been stricken by a disease known as aconned row playsia.ndition interferes with bone growth, resulting in short limbs and other complications. song suffered excruciating pain in his joints. soon he couldn't walk. >> translator: song's fingers began to curl and lock in place. i put him on a wagon and took him to get herbal medicines, but none of the medicines had any effect at all. it was a very difficult time. >> translator: none of my friends would play with me, because my body wasn't normal. i had a sickness. nobody around me wanted anything to do with me. i felt like a pariah. i had no idea what was causing it. i began shutting myself away at home. >> in 1980, five years after the war ended, the vietnam government ordered surveys of the soil where agent orange had been sprayed. experts also tested people living in these areas to find out residual dieoxin levels in their bodies. although it was well known that children were being born with severe birth defects, there were hardly any medical facilities to treat them. a non-governmental org