I don't know how accurate this article is, but according to this, the plan is the UAE is to take over 21 ports, many many more then we were previously told.
The author writes the following scenario, as to how a terrorist might easily get access. Now, I don't know anything about shipping docks, but doesn't this sound like a possibility?? Full article is attached.
TIS
"All a terrorist organization needs to do is find a single weak link within a 'trusted' shipper's complex supply chain, such as a poorly paid truck driver taking a container from a remote factory to a port. They can then gain access to the container in one of the half-dozen ways well known to experienced smugglers," CFR wrote.
web page