nobody seriously can believe they disposed of the body in the sea, unless you are American of course, but then you will be excused for thinking.
I suspect the body is kept in a freezer and will be "buried" somewhere in a campus for some obscure Skull and Bones fraternity to enjoy the remains so the next leaders of this world will draw immense power from his remains. I mean they are doing it with Geronimo so why not with Osama ?
where else could they keep him ? area 51 ? display in an Iraq military camp to up troops morale ? plan to secretly bury at ground zero ?
or maybe he is not dead, or he is already buried from being killed 3 years ago as they have claimed previously
quite an interesting situation, the lies are still there