Why do migrants take the risk of illegally crossing the border? As we discover, the root cause is poverty back home. This 1982 news clip has Geraldo Rivera on the ground at the border discussing the issue with a man who tries to help, and the irony of the migrants being arrested through a ‘revolving door’. The solutions in use are not enough to tackle the enormity of the problem. Are the causes of illegal migration today, the same as the causes 40 years ago?