Border security

Which Technologies would Turn US-Mexico Border Wall Effective?

According to aei.org, walls can actually work. The article mentions various precedents of walls and systems designed to maintain security and keep illegal immigrants and terrorists out while allowing legal immigrants and visitors in. Among these are Israel’s West Bank security fence; Morocco’s 1,700-mile system of sand berms, fences, mine fields, and ditches along the Algerian border; the Indian border fence and wall system to keep Pakistanis out; Turkey’s border with Syria, along which fences and mine fields were deployed; Saudi Arabia’s newly built wall along its disputed border with Yemen to keep Yemeni-based terrorists out of the Saudi Kingdom, and several other walls in conflict regions.

During and before the Obama administration, US policymakers concluded that a US-Mexico border wall would not be feasible. The border is 1,954 miles long. While more than 700 miles of border fence exists, the fenced border remains porous with drug cartels and people smugglers constructing tunnels under the border, cutting holes through the fence, or simply climbing over it.