This was his quote in the post you responded to:
My view is secure the borders. Everything from unmanned vehicles, to virtual fences, to actual fences, more personnel, detention centers. The places where you need an actual fence are where you have a big inflow. There are other places where you could use unmanned aerial vehicles and these unattended ground sensors. ... The point is to secure the border, and with more personnel, with more technology, and with more actual fences, we will stem the flow.
Is that enough fence for you?