Hadrian’s Wall, the Great Wall of China, the Berlin Wall, the US-Mexico Border Fence. Sometimes, the only way to keep undesirables in an adjacent geographical (and ideological) space from sneaking in to your own is by building a big-ass barrier. Learning this valuable home security lesson from history, Saudi Arabia has unveiled a 900km state-of-the art fence along its border with Iraq to ensure that the war waged by Islamic State extremists doesn’t spill across its frontier. The $3.4 billion Northern Border Security Project was built by Munich-based Airbus Defence and Space. Watchtowers, radars, night-vision cameras, face-recognition software, underground movement … Continue reading Saudi Arabia erects high-tech fence to keep out #ISIS terrorists – an annotated infographic