Did the authorities but realise it, Chomsky - like Goldstone - is a very good friend to Israel and Israel's long term interests. Israeli authorities may be able use psychological mechanisms of denial and dissociation in relation to truth, but they can't force others to do so. I assume we'll get to hear the reasons for the ban. Or the ostensible reasons. But whatever the reasons, this was a really stupid decision.
Hamas says Egyptian mediation has restored calm along Israel, Gaza border (Haaretz)
from the article: Noam Chomsky denied entry into Israel and West Bank