When the Federal Reserve cuts its key interest rate, the decision begins to ripple outwards, affecting everyone from credit card holders to car buyers to corporations. Reset talks with Morningstar personal finance expert Christine Benz about what you need to know about the recent rate cut as well as tips for saving for retirement in today’s economy. Her latest book is titled “How to Retire.” For a full archive of Reset interviews, head over to wbez.org/reset.