You can have all the security you want on the ship but when muslim extremists are using RPG's they do not have to get very close to the ship. If you heard the news these extremists were attacking a ship that was 100 miles off shore. It is only a matter of time before a tragedy will happen again. i.e. Achillo Laurio when they shot and killed Leon Klinghoffer. The bottom line is if you travel in these parts of the world you are p-rey to these terrorists. I know all about the BS about any city, any country etc but the degree that these people will go to to kill or harm innocents far outways any urban problems. I speak from personal knowledge is all I am allowed to say.