How farmer-philanthropist Howard Buffett is planting hope

Aired: 5/2/2016 | 0:10:40 | Clip
Howard Buffett, son of billionaire Warren Buffett, has an ambitious life goal: ending world hunger. As a farmer and philanthropist, his focus is on reviving African agriculture, which has suffered massive production failures. In collaboration with The Atlantic, Judy Woodruff charts Buffett’s efforts to boost food security for billions.