Assertions by Obama administration officials, as well as by many scholars, that these operations comply with international standards are undermined by the total absence of any forms of credible transparency or verifiable accountability. The CIA’s internal control mechanisms, including its Inspector-General, have had no discernible impact; executive control mechanisms have either not been activated at all or have ignored the issue; congressional oversight has given a ‘free pass’ to the CIA in this area; judicial review has been effectively precluded; and external oversight has been reduced to media coverage which is all too often dependent on information leaked by the CIA itself. As a result, there is no meaningful domestic accountability for a burgeoning program of international killing. This in turn means that the United States cannot possibly satisfy its obligations under international law to ensure accountability for its use of lethal force, either under International Human Rights Law or International Humanitarian Law. The result is the steady undermining of the international rule of law, and the setting of legal precedents which will inevitably come back to haunt the United States before long when invoked by other states with highly problematic agendas.

The Above is a quote from a paper by former UN Special Rapporteur on extrajudicial, summary or arbitrary executions Prof Philip Alston, which can be downloaded from the link below.

The CIA and Targeted Killings Beyond Borders, Prof Philip Alston
http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1928963

Targeted Killings: The US, the UN and Accountability by Philip Alston
http://www.youtube.com/watch?v=crtAuI50vgs

Professor Christian Enemark :  'Predators, reapers and post-heroic war ' at The Australian National University on 9 August 2011. 

http://www.youtube.com/watch?v=TLBDqy6pj28&ytsession=5ZujpRohnNa_CT206UF8ywUsMDJy8klscHlEZXcrYfHYQavMemR_C3n0fO6APBzeELEGIFN3cj1ab8KcXGH76c6AIFaACSi9Qa1EBrGwgbPL-oBiSf5rCMzWG_A7541Ldafo2qzmQFCx14jwtDd4RYc-A_dgHMbJBaMfEEWLd2NWOY8W80k3LvC0NpTgnPWX9VOH0OydmnO0-jhK0kaxWDchETKQZFPR0zgs7wMKlUcdrs_dZRfHo86I0wNKqwIRQQNyJuiUb_JgcEYHcq6fJfi4udJCrfhk1epAdSh5b-s

Drone Policy Will Come Back to Haunt US
http://www.youtube.com/watch?v=Fy4aLYsYODs

Extrajudicial Killing Debate with Philip Alston & John Dehn
http://www.youtube.com/watch?v=-1mFMyBFx38

What We Talk About When We Talk About Drones
http://www.newamerica.net/publications/special/drones_65120

Attorney General Eric Holder on Targeted Killings of Americans Overseas
http://www.youtube.com/watch?v=aZX8rtuqMiw

Pakistan Demands USA Stop Drone Strikes
http://www.youtube.com/watch?v=V1dPcZ4c-T0​

http://www.youtube.com/watch?v=4YVnn1GrNlA&feature=watch_response

Obama confirms Pakistan drone strike
http://www.youtube.com/watch?v=ERbFO06Ppnk

CIA Director: Drone Attacks in Pakistan Will Continue
http://www.youtube.com/watch?v=_75yCJvAi8A&feature=related​

http://www.youtube.com/watch?v=t-DJ6JOaHvc

New America Foundation Analysis of Drone Strikes: The Year of the Drone
http://counterterrorism.newamerica.net/drones

Pakistan Body Count Stats
http://pakistanbodycount.org/drone_attack

Predator Drones
http://www.youtube.com/watch?v=nMh8Cjnzen8

Unmanned aerial vehicle (UAV)
http://en.wikipedia.org/wiki/Unmanned_aerial_vehicle

International Human Rights Law IHRL
http://en.wikipedia.org/wiki/International_human_rights_law

International Humanitarian Law
http://en.wikipedia.org/wiki/International_humanitarian_law

Laws of War
http://en.wikipedia.org/wiki/Laws_of_war