Shankar Vedantam is the host and creator of Hidden Brain. The Hidden Brain podcast receives more than three million downloads per week. The Hidden Brain radio show is distributed by NPR and featured on nearly 400 public radio stations around the United States.
NPR's Ayesha Rascoe talks with Forbes senior healthcare contributor Bruce Japsen about why Walmart is closing 51 health clinics and what this means for the rural populations they served.
Genetically modified seeds for purple tomatoes hit the market for home gardeners recently. But how did a purple tomato get splashed across the cover of a seed catalog specializing in non-GMO plants?