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Saudi Arabia Is Building a 600-Mile Wall Along the Iraq Border

"Even though walls aren't as infallible as they were two centuries ago, they're absolutely exploding across the world. Besides obvious examples like Israel's 'separation barrier' in the West Bank and the United States' own farcical partial wall at the Mexico border, there are dozens of other countries building walls around themselves right now. There's the 1,050-mile-long fence between Turkmenistan and Uzbekistan, There's the 700-mile trench being dug between Afghanistan and Pakistan. There's the wall that Greece put up along its border with Turkey. North Korea and South Korea, too."