Colorado community fights plan to use drones to spray weed killer

Officials in Boulder County, Colorado, say they have a safe plan to wipe out invasive weeds, but some locals are concerned

Soon, weed-killing chemicals will start falling from the sky over the Red Hill area of Boulder county, Colorado.

The wildland is known for its biodiversity, home to hundreds of important species and a concentration of rare environmental resources. It is a key habitat for beloved herds of elk and bighorn sheep, with farms and ranchland lying at its base.