New government statistics show the number of immigrants detained in the United States has nearly tripled since 2001. Last year, Immigration and Customs Enforcement detained 283,000 people, or about 775 a day. Meanwhile, in Wisconsin, members of the immigrant rights group Voces de la Frontera held a rally on Monday to protest Lou Dobbs’ dominance of the immigration debate. Lou Dobbs hosts a nightly show on CNN and has been an outspoken critic of the immigrant rights movement. At the demonstration, protesters all wore masks of Lou Dobbs.