The call is out to make Martin Luther King Day a National Day of Service--"a Day On, Not a Day Off." This year, why not make Martin Luther King Day the day you commit to helping people in your community use a different, more productive way to talk about difficult public issues? The National Issues Forums Institute (NIFI) has recently released a new issue guide to help people talk about income inequality as part of a national conversation that will be reported to policymakers in Washington, DC.