It is concerning that this kind of behavior is happening already. Start acting now and communicate with your neighbors. Start building friendships. Start a neighborhood watch program. This is a good foundational point. Then bring in some of the economic concerns and ask what the group is doing individually. this will start the ideas going. Once, this is been talked about for about a month, then try to see who believes it could get bad. Begin to hook up more often with theses people and find strategies as a neighborhood to create protections and supports. Things like escape routes, alternative defense plans, group survival plans, and other plans that you can implement as a neighborhood. Everyone doesn't have to be involved in thes plans. It is mostly for precaution and readiness. So start now.