Jody Williams, who is involved in the campaign to stop killer robots, told BBC News that this kind of weapon, which does not yet exist, will be seen as highly undesirable. The British government has already stated that it has no plans to develop this technology. However, weapons with a certain degree of autonomy are already widely used on the battlefield, including drones. These weapons are described as human-in-the-loop systems because they can only select targets to attack upon human command.Drones are a type of killer robotHowever, the organizers of the event claim that advanced robotics means that the development of fully autonomous robots is just a matter of time. They believe that giving robots the power to decide who lives and dies on the battlefield is an unacceptable application of technology and a fundamental challenge to international human rights and humanitarianism. Jody Williams, the leader of the campaign, said: When people understand our campaign, they will get involved; people do not want the emergence of killing machines.However, some experts question whether a ban is necessary, believing there needs to be a public debate on the legality and ethics surrounding these weapons. Recent statements from the British and American governments show an unwillingness to completely remove humans from warfare. Moreover, a directive issued by the U.S. Department of Defense in November 2012 states that all weapons with a certain degree of autonomy should allow commanders and operators to exercise a certain level of human judgment in the use of force.