If you compare the track records of Judge Goldstone and that of prof. Dershowitz in both the juridical and the ideological sense you'd be able to make an informed call on this 'falling out' of friends. Goldstone has done excellent work on the South African 'reconciliation commission' and is an eminent jurist. That's why he was hired by the UN to compile the report. The report has flaws, for sure. These should be debated by the Israeli cabinet and on appropriate points they should give a rebuttal. Dershowitz is a 'brilliant' trial lawyer defending spurious clients. He's also a vocal public revisionist Zionist(Cherut/Likud) while Goldstone is a classical run-off-the mill partyless private Zionist. Academics, jewish or otherwise, should be able to conduct a friendship while having intellectual disagreements. Dershowitz is a 'friend' one can do without if he cancels a frienship for ideological reasons in such harsh words.
Austrian chancellor: Austria and Germany will allow migrants entry (Reuters)
from the article: Dershowitz: Goldstone is a traitor to the Jewish people