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Drones and Planes Replacing Firefighter Lookout

For more than a hundred years, the U.S. Forest Service has posted people atop mountains and trees watching for smoke, reports NPR.

But in recent years, the number of active lookouts has dwindled from thousands to hundreds as technology has encroached.

Supervisors say the drone, with its support staff and operators, can be prohibitively costly. But with that cost comes advantages.