Legal migration to the U.S. can be controlled, is necessary for our future growth, and it’s welcomed by all Americans. Its effects can be managed, and we can slowly adapt to newcomers and constantly assess our growing needs and the effect they will have on our resources. But illegal immigration is by its nature uncontrolled, explosive and dangerous to our environment. Here are Five Reasons Why: 1. Explosive Population Growth Is Not Sustainable Illegal Immigration at the current rate is not sustainable. How many people can the United States support? We stand at 300 million (plus 12-20 million here illegally.)...