from CNBC.com The Federal Aviation Administration next month is expected to issue preliminary guidelines on the commercial use of unmanned aircraft systems or as they are better known, drones. For the most part, drones are currently banned in the U.S., while other countries have more open use policy. And it could take months, even years before the FAA finalizes its … [Read more...] about Drone Gap? US May Have One in Farming, Say Experts