So we draw lines around our property, our counties, our cities, our states, our countries. And, boy, do we act as if those lines are important. I mean, we go to war. We will kill and die to protect those boundaries. Nature couldn't give two hoots about our national boundaries.
Many instances of persecution and killing have occurred in countries with atrocious human rights records such as Sri Lanka, Guatemala and the Democratic Republic of Congo.
Because countries often have differing political and economic systems, agreements are needed to protect those invested in trade.
