Creating
tensions: A young man walks next to the border fence between Mexico and the
United States.
GOP Presidential candidate Donald Trump has said he
will build a wall to keep out 'rapists and drug runners' across the length of
the border.
A wall unless it's monitored by armed guards may
not help because 'Well-funded drug cartels and terrorist groups are not
affected by walls at all because they have the resources to enter by safer
methods, most likely using fake documents,'
There are 65 countries either building walls, or which are already have them - including in Belfast, where they are called 'peace lines', as well as numerous in the Middle East, where countries are trying to protect themselves from the risk of terrorism
