“We should be using the money we spend on border walls to invest in technologies such as sensors, camera, and other things, which are a fraction of the cost,” Mr. Hurd said. But homeland security and migration experts say that a border wall is unlikely to stop either. They say the support for a wall ignores the changing dynamics of illegal immigration and the advances in technologies used by the Border Patrol and immigration officials. Current and former officials at Customs and Border Protection acknowledged that a border wall alone would not stop illegal immigration or drugs. The number of border walls has increased to nearly 70, from fewer than 20 in 2005.

Source: New York Times October 26, 2017 22:01 UTC