Bishop & Taylor return to the familiar topics of reinforced autoclaved aerated concrete (RAAC) and nutrient neutrality, both in the news. Fears of RAAC panels collapsing has prompted the closure of more than 100 school buildings and now more and more building owners are following suit. Rules that prevent houses being built where excessive nutrient run-off might pollute waterways are to be swept away, the government has decided. The final topic in this episode is the increasing obsolescence of power tools with plugs and cables.