The head of the FAA was supposed to provide Congress with a plan on how to integrate UAS into the national air space. In a recent letter to Congress, the FAA said they were not able to do that yet. They cited difficulties in developing a plan that will let UAS safely fly with manned planes, and also privacy concerns.
People who want the FAA to permit UAS flight say that privacy is none of the FAA's business.
An animal rights group called SHARD flew a spy UAS over a pigeon shoot and are outraged that it alledgedly was shot down. They are calling for action. Could be your hog lot.