Who is the media meant to serve? And why does it matter today, arguably, more than ever? 50 years ago, National Public Radio began as a small, scrappy news organization with big ideals and a very small footprint. Over the subsequent years of coverage and programming, NPR has grown and evolved into a mainstream media outlet, with a mission of serving audiences that reflect America. This week, Michel Martin, host of Weekend All Things Considered, talks to us about her time at NPR and the importance of representing all voices in news.