One good byproduct of the war on terrorism is that it has derailed the Bush-Fox "migration agenda". The NY Times reports:

"It is very clear to me that [Mexican] President Fox understands he is not going to achieve much of his migration agenda in the next few years," said Sergio Sarmiento, a political columnist in Mexico City. ...
Mr. Bush said on Sept. 5, 2001, that "the United States has no more important relationship in the world than our relationship with Mexico." ...
Before the attacks, Mr. Fox had seized upon Mexico's enhanced status to push a migration project that was as ambitious as the North American Free Trade Agreement. Declaring himself president to 100 million Mexicans at home and 23 million in the United States, he challenged Washington to expand permanent visas and guest-worker programs for Mexicans, and to give legal status to about 3 million Mexican migrants.