Tibet: Imprisoned Tibetan Filmmaker's Wife Calls for his Release in China

As China steps efforts to silence dissent in Tibetan regions and stop the spread of self-immolation protests, activists overseas are trying to draw international attention to the Tibetans' cause. Lhamo Tso, the wife of an imprisoned Tibetan filmmaker Dhondup Wangchen is one of those speaking out. VOA's William Ide has more from Washington.