Is it all a rovian plot and reaction to the tanking Bush aproval figures, somewhere were the Republicans can profile themselves against Bush?

If the whole thing is a take over of a British company that is already running the harbours, what is it really the US Government could do about it? Or am I to naive in international business, and am not aware of governments having to agree to private business deals exceeding a certain amount? (to prevent Monopolies or something)

Could someone please explain this?