David Hirsh and Jon Pike in Haaretz

Two Engage founders put an article in Haaretz, worth reading in its entirety. To whet your appetite:

The term, Zionist, has become a term of abuse that denotes an evil and racist ideology. It is thrown venomously at anyone who thinks Israel has the right to exist. The collapsing of Israeli and Jewish opinion into Zionism holds Israelis and Jews collectively responsible for the worst excesses of Israeli nationalists. Some people reserve particular venom for the crimes of "the Zionists" that they do not use when talking about other crimes. The genocide in Darfur is currently intensifying and is an incomparably bigger event in terms of human rights abuses than the conflict in the West Bank, but the actions of the Janjaweed do not make the blood of the average British liberal boil in the way that the crimes of "the Zionists" do.

They are right on many other points, too. It is also worth to page through the remarks there, some of them are very enlightening.