PBS News Hour Marks 50 Years, Insisting It Strives to be 'Even-handed to a Fault'

The PBS News Hour marked its 50th anniversary on Friday with a look back at its coverage of pivotal historical events. Co-anchor Geoff Bennett: "Before we go, we have a look back at our beginnings and at how the "News Hour" has evolved over five decades, while remaining true to the principles that defined this program from the start." And what “principles” would those be?