Stem cell trial seeks longer lives for victims of deadly ALS

Researchers at Emory University in the United States are hoping to extend the lives of patients diagnosed with the deadly neuro-degenerative disease, Amyotrophic lateral sclerosis (ALS). ALS kills by destroying a patient's nervous system but in clinical trials, the scientists say injections of neural stem cells show promise in slowing the disease's progress. Ben Gruber reports.