CNN Accidentally Proves Why Walls and Fences Work - Daily Signal

CNN Accidentally Proves Why Walls and Fences Work - Daily Signal

"In 1991, the government began construction of a 46-mile-long wall, now referred to as the 'primary fence.'

"This fence stands between 8 and 10 feet tall. It was tall enough to stop vehicle traffic, but could be easily breached by ladders and fence jumpers.

"In 1997, officials began building what's known as the "secondary fence," which runs 13 miles long and stands at 14 to 18 feet tall. This was meant to stop the illegal flow of foot traffic.

"Today, the San Diego sector accounts for only a small fraction of border apprehensions each year. According to the Department of Homeland Security, illegal crossings have decreased in the region by more than 90 percent since the walls and fences were built."