Bicycling activist Mark Martin on the light sentence received by the driver who killed Baton Rouge Councilman Buddy Amoroso last year as Amoroso was riding his bicycle in West Feliciana Parish. CNN Political Analyst Julian Zelizer, a Princeton professor, on the reasons for polarization in America. Racheal Hebert, CEO of Sexual Trauma Awareness and Assault comments on the impact of the government shutdown on services provided by STAR.