The Israeli acts are legal and there are two reasons, why you are wrong:
One, an act of a state is not an act for 'private ends', therefore ergo NOT an act of piracy. Even within the convention you cite, the convention does not allow such a suit. Another attorney and retired Navy Reserve Captain USN, who blogs on '
Eagle Speak' also takes the same position.
Two, there is also an issue of jurisdiction (or rather the lack of jurisdiction) by a relevant court of law. For example, in cases brought before the ICJ for between states (eg. between Turkey and Israel), both states involved in the case adjudicated must consent to submit to the ICJ's jurisdiction. And that is NOT going to happen.
It is normal for non-lawyers tend to read only a part of a clause that suits them rather than the whole clause. Forum members who would want to be better informed may want to read this post by
Alan M. Dershowitz, a professor of law at Harvard, on the
issue of legality in enforcing a naval blockade against another belligerent (Hamas). Likewise,
Leslie Gelb, President emeritus of the Council on Foreign Relations,
agrees in this article. Given that there is quite a bit of misinformed ranting in a few forums about the legality of these actions, I think providing these links here is of value (however, this is off topic). These links provided above explains why these actions are legal and is designed to put the matter to rest.
There is a post at STRATFOR by George Friedman called '
Flotillas and the Wars of Public Opinion' that discusses the information war of the Gaza flotilla incident. The STRATFOR analysis, shows that many people, despite living in an information age, easily fall for lies by a Turkish NGO, sympathetic to the objectives of a terrorist organization.
I do not intend to further discuss this issue and please also accept my apologies in advance for not being able to respond promptly to any replies for the next 3 weeks or so.