even sillier than all of this is that one of Osama's sons has copyrighted 'Bin Laden'. Apparently he wants to release a clothing label with it.

I heard the story differently. What I heard is that one of the members of his family already long-since owned a clothing business under that name, and that distributors in some european countries are choosing not to carry the line because the name has suddenly become a problem. I don't know which version of the story is correct.

This is a similar situation to the relatives of Adolf Hitler changing their names after the second world war. Yes, he has descendants living in the United States under new family names.

Oh, and by the way, the word in that case is "trademark" not "copyright". There's a difference.