I think bo_sox, young though he is, has an important point. The problem with recent technologies is that, if we don't develop guidelines for them early on, they can really get out of hand.
Take cloning for example. Cloning caught a lot of negative publicity in it's early days and so fairly strict regulations were put in place to prohibit behavior that was either considered unethical or else poorly understood. If anything, the regulations were probably too strict, but as a result we don't have a host of nightmarish cloning experiments going on.
With other technologies we have not been so lucky. I don't believe that drones are the sort of thing we want to toss to the private sector (or the police necessarily) and say "Go to town, boys!". I'd be happier if a set of guidelines were put into place along with a review period during which new technologies, particularly drone usage, was better studied.
These sorts of things are not self-regulating and we can't rely on people's better judgement and self-restraint to keep us safe.
Since orbital satellite technology is now falling into the hands of private investors and even hobbyists, it is not inconceivable that hobbyists will one day be able to home-brew large scale numbers of drones, even dangerous drones.
We have all seen the amount of mischief that youngsters, even miscreants, get into with smart phones and I'd hate to see this extended to small cheap flying robots.
The military, ever an early adopter of this sort of thing, has already used drones in a way inconsistent with public sentiments, so it is better to study and regulate these sorts of issues now before Big Technology and Big Marketing and the law enforcement lobbying industry get large financial positions in the sector.