NEW YORK - APRIL 27: A couple holds up a sign in support of illegal immigrants on April 27, 2010 outside of Federal Plaza in New York City. Following the state of Arizona's passage of a new immigration law which requires individuals suspected of being illegal immigrants to show proof of legal residence when asked by law enforcement, immigration supporters have been protesting across the country. The law has become increasingly divisive with Mexico's president issuing a travel warning to Mexican citizens in Arizona. (Photo by Spencer Platt/Getty Images)
