Work on expanding and improving the Wall continues in 1978. Vast stretches of fencing mean escapees can be spotted long before they reach the border zone, and spring guns are installed to make it impossible to reach the other side.
Work on expanding and improving the Wall continues in 1978. Vast stretches of fencing mean escapees can be spotted long before they reach the border zone, and spring guns are installed to make it impossible to reach the other side.
