There's a fairly public trial now though, and this is what the US was trying to avoid with the Sweden route.

Sweden has provided it's own police to assist CIA operatives in black bagging it's own residents against it's own laws and process and sent them to an Egyptian prison clearly to be tortured and then blamed it all on a dead politician.

https://en.wikipedia.org/wiki/Repatriation_of_Ahmed_Agiza_an...