Drones May Soon Do Costly, Dangerous High-Flying Maintenance

Office buildings require a lot of maintenance, and much of that work needs to be done outside the building. There are windows to clean and potential structural problems to identify. The work, which calls for scaffolding built from the ground or a platform suspended from the roof, is dangerous and expensive. But soon drones may be doing all that work for us. VOA’s Kevin Enochs reports.