Illegal immigration happens because we have cheap labor jobs for these illegals. If Fortune 500 companies didn't hire illegal immigrants, we wouldn't need a fence. Think of all the money saved. We need to hold those CEOs accountable and prosecute them for hiring illegal immigrants. GOP Politicians, with the help of these CEOs, have created their own legislation that grants immunity to these CEOs for hiring illegals. This needs to be reversed and is the most important part of immigration reform.