Arkin is a professor of robotics from Georgia Tech. He argues for the view that in certain warfighting applications LARs or killer robots can perform in an ethically superior way to human warfighters.

Sparrow is an ethicist from Monash. He argues for the view that LARs should be banned.

The term LARs was coined by the UN Special Rapporteur on Extrajudicial, Summary or Arbitrary Executions, Christopf Heyns. His report was tabled in the UN Human Rights Council in 2013 and it calls for member states to impose a moratorium on LARs.