When I began writing America Libre in 2004, some thought the book’s premise was unrealistic. An uprising by Hispanics? The idea seemed far-fetched, they said. Today, as the rhetoric over immigration grows more heated, the skeptics are no longer so certain. I posed the nightmare scenario of America Libre as a wake up call to the dangers of extremism—on both sides of this explosive issue. Illegal immigration is a hotly debated topic. Yet it is only the tip of the iceberg. Over the next decade, three other factors will prove equally significant. Some of the volatile conditions presented inAmerica Libre have already surfaced. I hope my abilities as a prophet end here. But the potential for a widespread conflict lurks behind every escalation of our current war of words.