"The Peshmerga guard Kurdistan's de-facto border with ruthless effectiveness. Those who attempt to cross away from the checkpoints and the roads are ambushed by border patrols. Anyone who doesn't speak Kurdish as their native language stands out among the general population. Iraqi Kurds, out of desperate necessity, have forged one of the most watchful and vigilant anti-terrorist communities in the world. Terrorists from elsewhere just can't operate in that kind of environment. Al Qaeda members who do manage to infiltrate are hunted down like rats."