Over 1,400 current Centers for Disease Control and Prevention (CDC) employees are demanding that the organization "clean its own house" of what they're calling a "culture of toxic racial aggression, bullying and marginalization." NPR reporter Selena Simmons-Duffin) broke this story and tells us what the response has been from CDC and former employees.Read) the letter and Selena's reporting.Email the show at [email protected]).Learn more about sponsor message choices: podcastchoices.com/adchoices)NPR Privacy Policy)