President Barack Obama on Thursday defended his administration’s use of drone strikes to kill terrorists as effective, lawful and “heavily constrained,” but he also appeared to be laying groundwork for an expansion of the controversial targeted killings

◼ Obama speech suggests possible expansion of drone killings - McClatchy

◼ Obama drone oversight proposal prompts concern over 'kill courts' - Guardian

Human rights groups wary after president asks Congress to establish special court or board to authorise legal drone action