When you imagine a library, you probably envision a calm space designed for quiet reflection, study and debate. Well, two incidents at Metro area libraries, in which two libraries found themselves at odds with police over freedom of expression, may have you thinking otherwise. What role do libraries play in social change and intellectual freedom? Guests: Ritchie Momon, chief customer experience officer, Mid-Continent Public LibraryR. Crosby Kemper III, executive director, Kansas City Public