Nice idea for all born Israelites but using Hebrew language at the UN wouldn't help since the country have Ambassadors who can communicate in a broader language English to be precise. I trust Israel is a great nation but condescending to such measure will send a negative signal to the rest of the world.
I dont think so… the president of Brazil doesnt speak english and everytime he goes to the un and he talks in portuguese… ok no one gives a shit for him there anyways lol