human rights and counter-terrorism, who identified 33 drone strikes around the world that have resulted in civilian casualties and may have violated international humanitarian law urged the United States "to further clarify its position on the legal and factual issues ... to declassify, to the maximum extent possible, information relevant to its lethal extraterritorial counter-terrorism operations; and to release its own data on the level of civilian casualties inflicted through the use of remotely piloted aircraft, together with information on the evaluation methodology used". Human Rights Watch said that in Yemen more civilians were killed than admitted by the Obama administration, while Amnesty International said the same of drone strikes in Pakistan. Caitlin Hayden, a White House spokeswoman, declined to comment on the reports, but said in an e-mail statement: "As the President emphasized, the use of lethal force, including from remotely piloted aircraft, commands the highest level of attention and care." While the U.S. government is considering whether to kill an American abroad suspected of planning terrorist attacks and how to do so legally under new stricter targeting policy issued in 2013, The Intercept reported that the U.S. government is using primarily NSA surveillance to target people for drone strikes overseas. In its report The Intercept the author details the flawed methods which are used to locate targets for lethal drone strikes, resulting in the deaths of innocent people. According to The Washington Post, NSA analysts and collectors (i.e. NSA personnel who control electronic surveillance equipment) use the NSA's sophisticated surveillance capabilities to track individual targets geographically and in real time, while drones and tactical units aim their weaponry against those targets to take them out. NBC News released in February 2014 an undated Department of Justice White paper entitled "Lawfulness of a Lethal Operation Directed Against a U.S. Citizen who is a Senior Operational Leader of Al Qa'ida or An Associated Force" in which the Obama Administration concludes that the U.S. government can order the killing of American citizens if they are believed to be "senior operational leaders" of al-Qaida or "an associated force"—even if there is no intelligence indicating they are engaged in an active plot to attack the U.S. However any such targeted killing operation by the United States would have to comply with the four fundamental law-of-war principles governing the use of force which are necessity, distinction, proportionality and humanity – i.e., the avoidance of