The U.S. National Park Service says drones are not welcome . Yosemite National , in California , said they 're being used to shoot video . Drones make noise and can disrupt delicate wildlife , parks say . The parks system says that applies to drones , though privately owned , unmanned aircraft probably were n't on anyone 's mind when it was written . Comment:
The U.S. National Park Service says drones are not welcome . Yosemite National , in California , said they 're being used to shoot video . Drones make noise and can disrupt delicate wildlife , parks say . Comment: