"Yesterday's revelations confirm that the European parliament has a moral duty to continue its inquiry," Fava told Reuters in Rome. "We still don't know everything that we have the right to know about this issue."

Last February the EU approved Fava's report accusing European governments and services of accepting and concealing secret US flights of terrorism suspects.

Italy has one of the best documented cases of what prosecutors believe was CIA rendition.

26 Americans - nearly all believed to be CIA agents - are being tried in absentia in Milan on charges of kidnapping a terrorism suspect in 2003 and secretly flying him to Egypt, where he says he was tortured.