How Professional Drone Pilots Are Helping Houston Recover From Hurricane Harvey

Less than a week after the last drops of Hurricane Harvey fell, Houston is just beginning to assess the damage. At least 46 people have died. More than 30,000 houses are flooded and as many as a million vehicles waterlogged. Early estimates suggest the hurricane has inflicted $120 billion in damage on the region, making it the most expensive natural disaster in the country's history. "This is going to be a massive, massive cleanup process," Texas governor Greg Abbott told ABC's Good Morning America on Friday.