The Vatican, which has an unsavory record in regard to the periodic slaughters of the Jews has thrown its moral weight (such as it is these days) onto the scales against the Jews.
http://www.frontpagemag.com/blog/index.asp
Such an uncharacteristically sloppy misrepresentation of the Pope's position seems deliberately malicious to me.
The fact that a Pope is worried about the Catholic Maronites of Lebanon (many of whom fought and died as Israel's allies during the Lebanon operation) hardly means that he has taken sides against the Jews or Israel.
I don't see why it's helpful for Horowitz to say stuff that seems designed to offend conservative American Catholics - a group that represents millions of staunch GOP defenders of Israel.
Personally I wouldnt characterize Horowitz or Frontpage as anti-Catholic based on that blog entry, but I admit I dont consider Hillary an anti-semite either.