PHOENIX—Arizona Governor Jan Brewer (R) announced this week that the state would be building a Fence of Liberty to greet all those crossing over the border from Mexico. The new structure will be covered in copper, with armed guard towers aloft every 100 yards. On the US side, the fence will read July IV MDCCLXXVI, commemorating the Declaration of Independence, while on the Mexican side it will read April XXIII MMX, commemorating the passage of Arizona Senate Bill 1070, the