![Virtual Surveillance Towers Show Promise As Alternative to Steel, Concrete Border Walls](https://ticklethewire.com/wp-content/uploads/2020/08/Screen-Shot-2020-08-10-at-6.18.50-AM.png)
Virtual Surveillance Towers Show Promise As Alternative to Steel, Concrete Border Walls
Steel and concrete border walls get all the media hype, but a new mobile technology may prove to be a far more effective and inexpensive way to combat illegal immigration.