1. “A drone warrior’s torment: ex-air force pilot Brandon Bryant on his trauma from remote killing.” (2013, October 25). Democracy Now! http://www.democracynow.org/2013/10/25/a_drone_warriors_torment_ex_air
2. Abe, N. (2012, December 14). Dreams in infrared: woes of an American drone operator. Spiegel International Online. http://www.spiegel.de/international/world/pain-continues-after-war-for-american-drone-pilot-a-872726.html.
3. Bergen, P., & Tiedemann, K. (2011). Washington’s phantom war. Foreign Affairs, 90(4), 12–18. https://www.foreignaffairs.com/articles/pakistan/2011-07-01/washingtons-phantom-war
4. Birnholz, J. C., & Benacerraf, B. R. (1983). The development of fetal hearing. Science, 222, 517–519. https://doi.org/10.1126/science.6623091
5. Boone, J. (2013, October 22). US drone strikes could be classed as war crimes, say Amnesty International. The Guardian. http://www.theguardian.com/world/2013/oct/22/amnesty-us-officials-war-crimes-drones.