Stop acting like the real world is some episode of your latest favorite spook TV program. First off the "port" industry is one of the most (I would the most) regulated industry in America. Therefore no the UAE would not have the ability to bring "outside" personal in to do security.
Nor would they be able to "bypass" (spooky) certain containers that "carried the bomb"...blah, blah, blah.
The real world does not work this way. The same union workers working those ports today....will be there when/if this UAE company owns them....the same "security" personal will be there too.
That is how the real world works. Doesn't make for good 1-hour TV programs...I know. But nonetheless.
Nobody is saying that Customs won't inspect the 5% of containerized cargo that it usually does. Nobody is saying the UAE will be running the ports like little Arabia, burkhaing women who enter.
No, where I am most concerned is that every port this company operates will be 100% spec'd by them, and they'll know it like the back of their hands. And one Muslim that info and an axe to grind--I know, a Muslim with an axe to grind, hard to imagine--could be trouble in a big way. Bringing the WTC down had infinitesimal repercussions compared to the impact that the shutdown of a single one of these ports could have.