The CIWS is large, expensive, heavy, and over-engineered for your purpose. A much better result, and much more cost effective, would be a purpose-built wall-mounted anti-personell automated turret with optional on-site control (for the guards in the towers on the wall). >Ban all media recordings Fuck that, have "gamer" tournaments during crossing season complete with high-score prizes and sponsorships. The spics currently on our side of the wall *not* running to leave are to be rounded up and trebucheted back over the wall. Vegas betting encouraged on number of bounces, distance, survival rate(quickly fixed via wall-cannons), and other such metrics.