I don't necessarily disagree with your sentiments but you need to beare in mind that this is not a new phemonenon. Foreign interests have been operating and managing (some not all) US ports for more than 20 years. Generally, they do it well and they do it cheaper than most US firms can or are willing to do. For better or worse, that's the definition of capitalism. Business (and profits) flow to the firms that can deliver good quality products, at the best prices (ask Honda). Of course security must be a consideration, but in the instance of port management, port security is the responsibility of a separate group and has plenty of oversight. Assuming the Arab interests in this situation are as greedy as their American business counterparts, then greed will almost certainly win out over nationalist interests. Just my 2 cents