We should welcome everyone into our country because we are supposed to be the helping nation. When we close the doors we are denying people the opportunity for a better situation. We never REALLY know what someone's life was back in another country or why they want to live in America. We would also not allow people to come in to the country just for a few days to visit their family. For example some of my friends have relatives in other countries, and often their relatives abroad visit them in America. That wouldn't be right denying someone their right to see their family, after all it's family.