'In Truth and Transparency, Alan Chen and Justin Marceau provide an insightful and thorough examination of the social and legal issues raised by undercover investigations. Chen and Marceau demonstrate that undercover investigations are a crucial element of the information-generation ecosystem that undergirds our society and our democracy, used in contexts far beyond the familiar ones of journalism and law enforcement. They closely examine the difficult moral and ethical issues raised by such investigations, which are after all based on deliberate lies, and they also carefully dissect the complex constitutional questions that arise when government officials seek to suppress such investigations. Truth and Transparency is an essential contribution to ongoing debates about the morality and legality of undercover investigations, and is a must-read for anyone with an interest in how, and how well, our society creates public awareness of lies and deceptions.' Ashutosh Bhagwat, University of California, Davis School of Law