P&O Ports North America's home page is:
http://portal.pohub.com/portal/page?_pageid=169,1,169_82863&_dad=pogprtl&_schema=POGPRTL
P&O Groups global Ports subsidiary page is:
http://portal.pohub.com/portal/page?_pageid=71,207406&_dad=pogprtl&_schema=POGPRTL
On the latter page, you can follow links to North American container totals.
The article leading off this thread is rather fact free, to say the least.
I have been to the port at NJ. I have called on P&O and know their facility. It is large, but NOT the largest at Newark. I believe Marsk is the largest there, but there are about 1/2 dozen companies that unload freighters there.
Now I don't have a dog in this fight, but all those guys on the docks are Union longshoremen. I doubt you could get rid of them and start hiring immigrants from the MiddleEast. I was more concerned when the Chinese took over the Panama canal and the port of Long Beach and so far that has been rather unfounded.
Since World Ports has agreed to set up a US division with an American in charge to run the ports I am less concerned.
Last...if you don't want foreign companies to run these ports, pass a law and list everything you don't want foreigners to own. I think you'll find America with a lot of for sale businesses and that big sucking sound will be foreign monies leaving our shores.