Maybe it had something to do with the guns and grenades....

But hey. I'm only guessing. But when I read something like this:



"We have to find out exactly what gave them the ability to get inside and get through the gate," Interior Ministry security spokesman Brigadier-General Mansour Turki told Reuters.

It's the first thing that comes to my mind. But I'm sure they will get to the bottom of it. They are after all strong supporters of the war on terror.