Agreed,
One doesnt really need to have "the navy" to cause serious harm, remember the USS Cole? All that took was a dedicated dipshit and a fast speedboat.
From what I read, the attack of the Cole was the end event in a Keystone Cops type of plan.
From what I remember it took several tries to pull it off.
First try, the boat was to small and it sank or swamped before it got far from shore.
Second attempt, they got a bigger boat, but the pilot fell asleep and did not make the rendezvous with the explosives.
Third attempt was successful....
I seem to remember more attempts were made, but can't recall how they failed.
The Cole wasn't the ship they were going for on the failed attempts...it just happened to be the one in port when they got their act together.