This wall is being built near El Paso. http://www.jpost.com/sites/default/files/BloggersImages/898%5C/image/USA%20Mexico%20border-%D7%91%D7%95%D7%A0%D7%99%D7%9D.jpg https://gyazo.com/adec959b5f74de713c7fe57a17b83f23.png Another solar wall design idea.