The part of this issue that has changed the most overtime is who is being targeted as the problem immigrants. It first started with the Chinese, then with Asians as a whole, then with Mexicans, then with people from the Middle East, and then it recently went back to Mexicans. This is just because of the history and what was going on during that time. For the Chinese, it was the violence. For Japanese, fear of invasion. For Middle East, terrorism. And for Mexicans, job loss.