Injuries are common when "jumpers" try to scale the six-metre (20 ft) fences. They are often topped with barbed wire or even coils of razor blades. Fernando Grande-Marlaska, a judge who became ...

Late in 1876, so the story goes, a young man named John Warne Gates built a wire-fence ... barbed wire wrought huge changes on the American West, and much more quickly. Joseph Glidden's design ...