On April 10th Cardinal Walter Kasper, published an important article in L'Osservatore Romano, apropos the recently modified prayer for the Jewish people in the Good Friday Service of the Extraordinary Form of the Roman Rite.Sandro Magister has made available the text on his website, as he had previously published a critique on the part of a prominent Italian rabbi.Kasper's text is long and theologically nuanced, but he concludes as follows:

The exclusion of a targeted and institutionalized mission to the Jews does not mean that Christians must stand around with their hands in their pockets. Targeted and organized mission on one side, and Christian witness on the other, must be distinguished. Naturally, Christians must, where it is opportune, give to their older brothers and sisters in the faith of Abraham (John Paul II) a witness of their own faith and of the richness and beauty of their faith in Christ. Paul did this as well. During his missionary journeys, Paul always went first to the synagogue, and only when he did not find faith there did he go to the pagans (Acts of the Apostles, 13:5,14ff., 42-52; 14:1-6 and others; Romans 1:16 is fundamental).Such a witness is also asked of us today. It must of course be done with tact and respect; but it would be dishonest if Christians, in meeting with their Jewish friends, should remain silent about their own faith, or even deny it.We expect just as much from believing Jews toward us. In the dialogues that I have known, this attitude is entirely normal. A sincere dialogue between Jews and Christians, in fact, is possible only, on the one hand, on the basis of a shared faith in one God, creator of heaven and earth, and in the promises made to Abraham and to the Fathers; and on the other, in the awareness and respect of the fundamental difference that consists in faith in Jesus as Christ and Redeemer of all men.The widespread incomprehension of the reformulated prayer for Good Friday is a sign of how great the task is that still lies before us in Jewish-Christian dialogue. The reactions of irritation that have arisen should, therefore, be an opportunity for clarifying and further deepening the foundations and objectives of Jewish-Christian dialogue. If a deepening of dialogue could be begun in this way, the agitation that has arisen would lead to a truly positive result in the end. One must certainly always be aware that dialogue between Jews and Christians will remain, by its nature, always difficult and fragile, and that it demands a great degree of sensitivity on both sides.

The full text (as well as other pertinent references) is here.