The case of the alleged AIPAC spies that eventually collapsed a few months ago was always murky and strange. Haaretz has now interviewed Larry Franklin, the Pentagon analyst who was convicted of leaking classified documents to the AIPAC staffers Steve Rosen and Keith Weissman; the story just keeps getting wierder. Franklin, a Catholic, was set up to trip the AIPAC men by feeding them a false document telling about an imminent threat to Israeli agents in Iraq; the way he tells it, this was the culmination of years of investigation which can only be decribed as antisemitic.
The case, as long as it was active, was used by many in the Walt-Mearshiemer section of the American public (and blogosphere), as an indication of the pernicity of the Israel Lobby and the danger it poses to America. If they were intellectually honest, those people, they might now want to engage in a spot of investigation in the opposite direction, and ask themselves if it's possible that antisemitism can still be a motivating force for an American federal agency - a very serios allegation, I would think.