主播大秀

Extraordinary personal stories from around the world: today, molecular biologist Joe Cohen tells of the moment he and his team made a ground-breaking discovery which may pave the way to the world's first malaria vaccine. Also, the wife of a jailed Cuban dissident, Alejandrina de la Riva explains why she and her friends wear white to highlight their cause. And world champion slackliner Andy Lewis on why he risks his life each time he walks the line.