America under attack: in Immigration Invasion, John Birch Society President John F. McManus warns that the illegal immigration invasion must be ended if the nation is to survive.

John F. McManus, president of the John Birch Society, has long been at the forefront of those bravely opposing the many threats to the United States. Over the past several years, the accelerating problem of illegal immigration has become one of the biggest threats currently facing the nation. It is a welcome sight, then, to see that the John Birch Society has released a new DVD, entitled Immigration Invasion, featuring a presentation by the incomparable Mr. McManus warning of the imminent dangers presented by the immigration crisis. Even more welcome is the fact that McManus doesn't just explore the problem, but also provides badly needed solutions.

The problem facing the nation along the southern border with Mexico is not so much immigration as invasion. It is important to clarify the distinction between the two. Immigration occurs when individuals from other nations immigrate to a new nation and become citizens of that new nation, all while obeying the immigration laws of the recipient state. This certainly does not describe what is happening on the Mexican border. There, migrants stream across the border encouraged by the policies of the Mexican government.

This is undeniably an invasion, as McManus makes clear, in part by citing the work of journalist Carlos Loret de Mola. Writing in Excelsior magazine, Loret de Mola made it clear as early as 1982 that the goal was to return a part of the Southwest U.S. to Mexico. "A peaceful mass of people ... carries out slowly and patiently an unstoppable invasion, the most important in human history." He continues: "It seems to be slowly returning the southwestern United States to the jurisdiction of Mexico without the firing of a single shot by means of a steady, spontaneous, and uninterrupted occupation."

The U.S. Constitution states that the United States "shall protect each [of the states] against invasion." Far from opposing this invasion, U.S. policy has actually encouraged it. In 2004 the Bush administration proposed a "guest worker" program that would have allowed millions of illegal migrants to remain in the United States for years. The plan is, essentially, an amnesty program that exempts illegal migrants from obeying immigration laws. It has been a lure for additional millions to cross the border and, instead of being a cure for the problem as the president and his supporters have claimed, has made the problem worse.

In light of history, this is no surprise. "History shows that amnesty for illegal entrants only encourages more to illegally cross the border," McManus warns, noting that the Pew Hispanic Center published a survey showing that 40 percent of Mexico's citizens, almost 50 million people, would like to move to the United States. That's a stunning number, and, in fact, the scale of this invasion is almost unprecedented.

In addition, the Bush plan--and illegal immigration generally--makes a mockery of those who immigrated here legally, as McManus points out. "Almost all politicians, reporters, radio and television commentators, professors, and others customarily refer to the millions of invaders as 'undocumented workers,' or 'guest workers,' or job-seeking immigrants," McManus says. "But the reality is that the millions who have come here uninvited have thumbed their noses at our ...