Washington Post database editor Steven Rich and Ted Mellnik join producer Michael O'Connell to discuss their massive undertaking: requesting and analyzing homicide and case closure rates from 50 cities across the United States. They talk about the disparities that exist in a single city and how data reporting no longer requires looking through filing cabinets but, instead, requires the ability to read and interpret data files. It’s All Journalism is a weekly podcast about digital journalism. Find out all the latest news about our podcast by signing up for our weekly email newsletter.