People are an asset, not a liability. The United States is the most immigrant-friendly nation in the world and the richest country in the world. This is not a coincidence. Those voices that would make us less immigrant-friendly would make us less successful, less prosperous, and certainly less American. Today, some 11 million "undocumented workers" live in the shadows in the United States. Sixty percent of them crossed the Mexican border or the Canadian border without government approval and 40% arrived by plane and overstayed their visas. The 844-page immigration reform bill submitted to the Senate by the "Gang of...