Some U.S. officials and analysts contend that the widespread prolifera — Drones

"Commercial drones can travel at up to 100 mph and deliver goods under 5 lbs (2.3 kg) - and according to ARK Investing Group, potentially each trip could occur at a low cost of $1 per shipment."

"Thats something that you have to struggle with, if you dont, then its very easy to slip into a situation in which you end up bending rules thinking that the ends always justify the means. Thats not been our tradition. Thats not who we are as a country."

"The proliferation of military robotics ... is likely inevitable," says Michael Horowitz, a political scientist at the University of Pennsylvania who studies military technology. "Much better for close allies and partners to get systems from the US and learn to use them responsibly than to build them themselves or buy them from other countries."

"Curbing the proliferation of Weapons of mass destruction and their delivery vehicles is a challenging task. Many potential proliferators are convinced they need to develop WMD and their associated delivery systems to protect their national security. It is estimated that some nations will begin exploiting the full range of UAVs, including delivering WMD in the next decade."

"While we do not believe that UAV strikes cause disproportionate civilian casualties or turn killing into a "video-game," we are concerned that the availability of lethal UAV technologies has enabled US policies that likely would not have been adopted in the absence of UAVs. In particular, UAVs have enabled the United States to engage in the cross-border use of lethal force against targeted individuals in an unprecedented and expanding way, raising significant strategic, legal and ethical questions."

"Since when is the intelligence agency supposed to be an air force of drones that goes around killing people? I believe that it has to be the Department of Defense."