Al Jazeera reports that Saudi Arabia has unveiled a 900km multi-layered security fence along its border with Iraq. The five-layered fence project will include watchtowers, night-vision cameras, and radar. The Saudis have already sent a troop force of 30,000 to the Iraq border. Anything the Obama administration might learn here regarding America’s wide-open border with Mexico? Talk about a perfect campaign plank for non-statists this fall.