In tonight’s new edition, Bill Moyers explores the seed of a great idea. Specifically, he interviews Vandana Shiva, a scientist and philosopher who both explains and questions the spread of generically modified plants and seeds – and the long-term ramifications, health-wise and otherwise, for all of us. And that’s only one of Moyers’ guests on this week’s show. It airs from Friday to Sunday on local public TV stations; to find it in your local area, click HERE.