hidden agenda

from The Collaborative International Dictionary of English v.0.48

agenda \agenda\ ([.a]*j[e^]n"d[.a]), n.
   a temporally organized plan for matters to be attended to.

   Syn: docket, schedule
        [WordNet 1.5 +PJC]

   2. A list of matters to be discussed (as at a meeting).

   Syn: agendum, docket, order of business
        [WordNet 1.5]

   3. A motive or set of goals; as, to have one's own agenda;
      especially, a secret motive; also called {hidden agenda};
      as, some of the news commentators themselves have an
      agenda.

   Syn: goal, hidden motive, secret motive, hidden agenda.
        [PJC]