The annual Consumer Electronics Show (CES) is often about future possibilities, with some of those possibilities being years into the future. Drones, for a large part, can fit into that category. There are some on the market, but many right now are more hype than reality. Still, they are generating a lot of attention, though it could be awhile before drones are commonplace fixtures in the sky. The Federal Aviation Administration is still working out regulations for them, and vendors are dealing with a wide array of issues, from collision avoidance technologies to safety and security.