In this week's episode we take a look at the possibility of behavioural marketing - both the good and the bad. In order to do behavioural science effectively we have to gather information on our audiences. But what happens when that data is misused - and how do we ensure it's only used constructively? The Drum's senior tech reporter Chris Sutcliffe is joined by an expert panel, consisting of: Tara Austin of Ogilvy; Reading Room's Alexei Lee; and Roy Armale of VMLY&R Commerce.