Nine CIA flights land secretly in Poland. Was Europe the site of a secret prison where top Al Qaeda suspects were held? "It is unlikely," says lawyer Clive Stafford Smith, "that the British, European and American governments will tell us the truth. So we will sue them into the next generation." Olenka Frenkiel reports on the plane spotters, civilians, judges, lawyers and journalists piecing together the jigsaw of "extraordinary rendition", the CIA’s secret programme of kidnapping citizens, out-sourcing their torture, and sending them for trial in what even the US military lawyers call "kangaroo courts" where the outcome is rigged