"Rendition flights" refer to the practice of secretly transporting individuals from one country to another, often for the purpose of interrogation or detention without legal process. Full definition
10 April 2013 — DIEGO GARCIA Question: To ask Her Majesty's Government, further to the Written Answer by Baroness Warsi on 11 March (WA 11), whether Diego Garcia has been used for rendition flights since 1 January 2010. (lordashcroft.com)
Edmund Clark, Redacted image of a complex of buildings where a pilot identified as having flown rendition flights lives, from Negative Publicity: Artefacts of Extraordinary Rendition, by Crofton Black and Edmund Clark 4. (aestheticamagazine.com)
Redacted image of a complex of buildings where a pilot identified as having flown rendition flights lives, 2013, from the series Negative Publicity: Artefacts of Extraordinary Rendition (photolondon.org)