Coming up on The Exchange, we hear from the two candidates for mayor and two candidates for the Sioux City Council, who spoke at a forum last Thursday.
Also, we get an update on what Iowa Governor plans to do or not do about vaping in the state. Also, we talk with a physician from the Mayo Clinic about the dangers of vaping.
And we speak with the host of the NPR program, The Hidden Brain, Shankar Vedantam
The program marries science and storytelling.