How do the harmful effects of chemicals go undetected, and what can we do to better protect against this? Public health expert Professor Tim Driscoll and Walkley Award-winning journalists Kerry O'Brien and Carrie Fellner discuss. This conversation was recorded on Thursday 19 September, 2019 at the University of Sydney and presented in partnership with The Walkley Foundation. Visit the website for more details: http://bit.ly/33SuTNa