(Part II) This is a different kind of session. Instead of the normal celebration of our success this session will be looking at our challenges. But, not degrading into self-pity and negativity, as it will be about critical reflection and possible solutions. The goal of this session is to raise the issues we should be tackling. To break the mold of the typical conference session, in which we review what we have solved, and instead explore what needs to be solved. Each participant will give a short (max 10 minutes but preference will be for 5 mins.) presentation in which they take one topic and critically analysis the problems surrounding it, both new and old. Ideally, at the end each participant would have laid out a map of the challenges facing their topic. The floor will then be opened up to the audience to add more issues, refute the problems raised, or propose solutions. This is open to any topic- GIS, 3D modelling, public engagement, databases, linked data, simulations, networks, etc. It can be about a very narrow topic or broad ranging e.g. everything that is wrong with C14 dating, everything wrong with least cost path analysis in ArchGIS, everything wrong with post-prossussalism, etc. However, this is an evaluation of our methods and theories and not meant to be as high level as past CAA sessions that have looked at grand challenges e.g. the beginning of agriculture. Anyone interested in presenting are asked to submit a topic (1-2 sentences) and your estimated time to summarize it (5 or 10 minutes). Full abstracts are not necessary.