It doesn't have to be that hard. Just build a fence like Israel did. It may cost a few billion dollars, but I'm sure the states of Texas and Arizona would gladly front the money since they lose are being drained by social services spending by the illegals now.
Also, its not like the Federal government has to create any new laws. Border patrol is already one of its responsibilities. Illegal immigration is already, by definition, illegal. Employing illegal immigrants is also already illegal.
If the existing laws would just be enforced by the Bush administration, especially going after employers of illegal immigrants, most of the problem would go away.
Bush simply doesn't have the will, for whatever reason, to enforce the immigration laws of this country. Instead, he actually encourages illegal immigration.
The plans for North American Union of Canada, Mexico and the US, including the common currency were all published over 30 years ago by the Trilateral Commission. None of us believed it then but this old conspiracy theory is today's harsh reality for a New World Order.
http://usinfo.state.gov/usinfo/Archive/2005/Mar/23-215428.html
How long will we be the "Country of Choice" if we continue to make the changes forced on us by the people from other countries who come to live in America because we have made America their "Country of Choice"?
http://www.freerepublic.com/focus/f-backroom/1390577/posts?page=565#565