Many years ago I went out to South Africa to work in telco. When cabling up an area, they laid: 1) Deep cables to carry the data 2) Shallow cables to be dug u

Many years ago I went out to South Africa to work in telco. When cabling up an area, they laid: 1) Deep cables to carry the data 2) Shallow cables to be dug up and stolen, without affecting the data-carrying ones.