Natan Sharansky has written a superb editorial in Haaretz, where he puts forth his view that there is no Zionism without Judaism. This from someone who refuses to label himself a religious Jew.
One short quote: "There is no Zionism without Judaism, and there never has been. Just as the Israeli people has never had a right to the land of Israel. Only the Jewish people."
If you read nothing else today, please read this article.