This is plain weird. According to local newspaper Het Parool Gretta Duisenberg, the widow of former Dutch National and European Central Bank chief Wim Duisenberg, is mentioned in the file of terrorist suspect Samir Azzouz. The file contains a Post-it note with Mrs Duisenberg's telephone number, as well as the words 'phone', 'cooperate', 'invite' and 'three o'clock' (in Dutch, of course). In the Parool article, Mrs. Duisenberg denies knowing Azzouz.
The newspaper goes on to describe accusations of Mrs. Duisenberg aimed at the Dutch intelligence service AIVD, for having placed a wiretap on her phone (George, sure you don't know anything about that?). She says she's certain of being eavesdropped upon because she hears a clicking sound every time she places a call. Right, intelligence agencies still work with technology from old Forsyth novels. Mrs. Duisenberg has courted controversy before: she is an activist for the foundation of a Palestinian state and, rather more controversialy, has compared the situation of the Palestinians with the Holocaust of the Jewish people.