Thanks in large part to misinformation, protectionist legislation passed with the support of Big Labor and other rent-seeking groups, and rhetoric accompanying these actions, immigration has become a divisive topic. As was seen between East and West Berlin decades ago and between the United States and Mexico today, this controversy sometimes results in the construction of physical barriers to prevent the free movement of individuals. Yet, fortunately there are some reasonable voices in this discussion, helping to point out how immigration restrictions further entrench governments and negate individual rights, in addition to severely hampering the economy.