The FAA’s proposed rules for drones are too restrictive for them to live up the farmers’ hopes to search for stray cattle or monitor trouble spots in crops, says Reuters. Farmers say the utility of the airborne devices is greatly reduced by rules that limit drones to 500 feet of altitude and that require operators to keep the machines in sight. Idaho farmer Robert Blair told Reuters he would have to fly 10 missions, shifting position each time, to cover his 1,300 acres of crops. Experts say drones will be used initially to scout trouble spots in fields and they could be used to gather material for crop insurance claims. Climate Corp. told Reuters that it will test different uses of drones.