When Goldman Sachs employee Greg Smith handed in his letter of resignation, he did so in the most public manner possible – by posting it in the pages of The New York Times. In his letter, the former derivatives trader described the firm's working environment as "toxic and destructive" and accused their culture of placing company profits over client interest whenever possible. In this conversation with Louise Story, investigative reporter for The New York Times, we discuss the culture of Goldman Sachs and the culture of Wall Street.