Fake news is disinformation that seeks advantage via manipulative and deceptive rhetoric.  Online it reverberates within homogenous communities until it is greatly amplified and widely distributed, often by unwitting dupes.  This phenomenon is so widespread that many scholars claim we have entered a mediated "post-truth" era, and this view presents a formidable challenge to our understanding of communication and journalism’s role in fostering public goods.  World Communications Day was celebrated on 5/13/18, and studying Pope Francis’ message “‘The truth will set you free:’ Fake News and Journalism for Peace” provides an opportunity to learn how lessons from both the Christian and journalistic traditions can inform ethical communicators.