How can design be used to challenge the status quo, to interrupt the jargon, to disrupt and redirect ecological and socio-economic flows? LA+ Journal's fourth international design ideas competition invited designers to take an established place and design something to productively interrupt both its cultural and spatial context. What does this mean? It means injecting something different into a given context to effect new meanings and new functions. It means questioning what design does, who it's designed for, what it looks like, and what it means. Issue #17 brings you the results of the LA+ INTERRUPTION design competition. As well as showcasing the award-winning designs and a comprehensive Salon des Refusés, LA+ INTERRUPTION features interviews with jurors Fiona Raby, Martin Rein-Cano, Mark Raggatt, Rania Ghosn, and Jason Zhisen Ho, and an essay by Katya Crawford, coauthor of the The Design Competition in Landscape Architecture(forthcoming).