On the 21st: We discussed how the Obama Presidential Center fits into the Jackson Park community in Chicago. Plus, we spoke with the director of the Illinois Department of Public Health about the importance of vaccinations and revisited our conversation about what the new Trail of Tears sites in Illinois mean for Native Americans today.

On the 21st: We talked with scientists about chemicals in everyday products that may be dangerous to pregnant women and children. We also learned about the Chicago neighborhood that will soon be home to the Obama Presidential Library and heard from Orland Park Police Chief Tim McCarthy about his reaction to would-be presidential assassin John Hinckley, Jr.'s release. Plus, we spoke about the American lawn and how to incorporate native plants into home landscaping.