Last December Diane Rehm signed off for the last time on NPR. It was the final broadcast for her self-titled program that for nearly 40 years provided public radio listeners civil conversations about the most controversial news stories of the day. The nation's power brokers and policy shapers sat across from Rehm, taking questions from her and her listeners. Rehm was in San Antonio this week for a speaking engagement. I spoke to her about life after the Diane Rehm Show. We talked about her new