Rones and how they are becoming more advanced along with the safety concerns of civilian drones

I need a paper on drones and how they are becoming more and more popular and more advanced. Also it needs to get into safety concerns surrounding them including flying them too close to airports and other people. And what is being done to establish rules on standards on where and when you can fly them. It needs 5 sources, should include 3 different ones such as book, academic journal/periodical or internet.

Added on 27.04.2015 18:47
The only change to the original instructions that I need to make is that instead of 5 sources I will need 8 sources total. So I need 3 additional sources on top of the original 5 added to the paper