Dancing Grannies make triumphant return after Waukesha Christmas parade tragedy

Last year, an SUV tore through a Christmas parade in Waukesha, Wisconsin, killing six and injuring dozens. Some of the victims were members of the Milwaukee Dancing Grannies. The group made a triumphant return to this year’s parade, sending a message to others still recovering from the tragedy. Steve Hartman shares more in “On the Road.”