Now, don't anybody go trying to claim our Obama. He is 100% American. The Irish are notorious for voicing their frustration that Americans with Irish ancestors claim to be "Irish." You are not, they insist, Irish, if you were not borne in Ireland.
So let's all forget about this little meaningless news story, because guaranteed, you will have another onslaught of American tourists coming over to find their "roots," much to the chagrin of the locals.