Answer:
Human beings’ first instinct is to protect ourselves. For centuries, we built walls in the belief that this was the best, more effective way of staying safe. However, at the beginning of the 21st century, it is clear that walls no longer afford protection. They may be high, strong and supposedly invincible, but you are mistaken if you believe that any border is unbreachable. At best, they are for honest citizens who are affected by all these barriers, but they are an illusion for organised crime groups who, for a long time, have learnt to overcome obstacles, even the most sophisticated ones.
