The water situation at the Willand plant began as an apparently local problem. The water company manages water, the food business manages food, local authorities manage local resilience, regulators manage their obligations, and government departments manage individual areas of policy. We describe Critical National Infrastructure through separate sectors such as water, energy, transport, communications, and food. Food depends upon water, water depends upon energy, energy depends upon communications, and all depend upon transport, labour, planning, and functioning public institutions. The problem was local, the infrastructure was regional, the system was national, and the pressures were global.