like the uncontroversial targeted killing of Japanese Admiral Isoroku Yamamoto while he was traveling by a military airplane during World War II." Further support for the U.S. government's use of drone strike tactics is found in a report found in the Journal of Strategic Security concerning the surgical nature of drone strikes for use in a populated area. The author concedes, "Indeed the tactic of using drones promises the ability of eliminating enemies in complex environments, while minimizing the political implications of resorting to war." The domestic legislative basis offered to justify drone strikes is the Authorization for Use of Military Force Against Terrorists (AUMF), a joint resolution of both houses of Congress passed exactly one week after 11 September 2001. The AUMF permits the President to use "all necessary and appropriate force against those nations, organizations, or persons he determines planned, authorized, committed, or aided the terrorist attacks that occurred on 11 September 2001, or harbored such organizations or persons". A report published in the Journal of Strategic Security focusing on the future of drones in geopolitics finds the U.S. government's use of drones in targeted killing operations an "indiscriminant and disproportionate use of force that violates the sovereignty of Pakistan". Twenty-six members of United States Congress, with academics such as Gregory Johnsen and Charles Schmitz, media figures (Jeremy Scahill, Glenn Greenwald, James Traub), civil rights groups (i.e. the American Civil Liberties Union) and ex-CIA station chief in Islamabad, Robert Grenier, have criticized targeted killings as a form of extrajudicial killings, which may be illegal under both United States and international law. In early 2010, with President Barack Obama's approval, Anwar al-Awlaki became the first U.S. citizen to be approved for targeted killing by the Central Intelligence Agency (CIA). Awlaki was killed in a drone strike in September 2011. A Reuters report analysing the killing of 500 "militants" by US drones between 2008 and 2010 found that only 8% of those killed were mid- to top-tier organisers or leaders; the rest were unidentified foot soldiers. The Intercept reported, "Between January 2012 and February 2013, U.S. special operations airstrikes [in northeastern Afghanistan] killed more than 200 people. Of those, only 35 were the intended targets. During one five-month period of the operation, according to the documents, nearly 90 percent of the people killed in airstrikes were not the intended targets." According to analysis by Reprieve, 874 people were killed, including