杂志里有一段话，最后一行中的rendition在这段话里，
要怎么理解比较好呢？
(rendition原本有译文;表演等意思)
Britain loaned the largest island, Diego Garcia, to America to use
as a military base. Since then the atoll, which is within striking
distance of east Africa, the Middle East and South-East Asia, has
become indispensalbe for America's armed forces, who nickname it
"the footprint of freedom". It gives them control over the Indian
Ocean and has served as a base for long-range bombers to pummel
Afghanistan and Iraq. The CIA used it as a "black site" in its
rendition programme.
谢谢!!

https://en.wikipedia.org/wiki/Extraordinary_rendition查"非常规引渡"，你就会知道了。

谢谢h大!