-A country will do everything to protect its existence. This principle goes above international law.
-The UN is not an independent international institute, its a collection of international politic interests.
That said it seems that the draft proposal of the UN panel favors the opinion that Israels action were within international law, or maybe not...
http://www.hurriyetdailynews.com/n.php?n=un-probe-to-flotilla-attack-faces-deadlock-2011-05-12
(...)the draft wording, which falls short of saying Israel violated international law in the raid last year.
(...)
The panel seems to be operating from the premise that Israel’s maritime blockade on Gaza does not breach international law, the Daily News has learned from diplomatic sources.
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There is ongoing debate in the international arena on whether Israel’s blockade is lawful and the issue remains one of the most controversial dimensions of the Israeli-Palestinian conflict.
The first draft does, however, accuse Israel of resorting to excessive use of violence that led to the death of the nine Turkish nationals. It asks Israel to pay compensation, one of the two conditions Turkey demanded be fulfilled to normalize ties with Israel.