The shooting of Michael Brown has increased calls for police to wear cameras. In Rialto, Calif., use of force by police officers declined 60 percent in first year after the introduction of cameras. // John Kerns reports King County is considering a new restaurant sanitation rating, hopefully making health inspections more transparent and easier to read for consumers. // A recent spate of buildings in New York with separate amenities for the haves and have-nots is provoking a debate over equality and economics. // Letters.