We stared in disbelief at the Minneapolis 2040 Built Form map, meant to direct development throughout the city: it called for a Corridor 4 district, meaning four-story apartment buildings, on the county-owned land along the east side of the Kenilworth Corridor. Unintentional error? Or a trial balloon from planners intent on densifying the entire city? Either way, Hill and Lake residents pushed back — hard. This is the story.