The FAA is slated to deliver rules for the regulation of the operation of Commercial and private Drones in US airspace this year.
In the meantime, the FAA recently issued a letter to local law officials stating the preference that users of drones not be charged or detained, but instead observed for input into the FAA regulation setting process.
A copy of that letter can be found here.
An interesting point recently made be the FAA is that their charter is to provide regulation for a safe fling environment. Therefore the FAA has no opinion on other drone issues, such as the invasion of privacy. Privacy issues it appears will be the domain State and Local governments, which will lead to a patchwork of regulations, or non-regulations, hammered out in every locality.