Mexico's top diplomat said here Thursday that his nation wants to see Washington undertake an immigration reform extending legal status to "all the Mexicans in the U.S." The time has come to debate that reform, "without passion, but with reason, because it mutually suits us," Foreign Secretary Luis Ernesto Derbez said in Chicago, home to a burgeoning Mexican community. Mexico will continue pointing out to U.S. authorities the need for such an accord, he told business and civic leaders at a breakfast organized by the Chicagoland Chamber of Commerce. He reminded his audience that since taking office in December 2000,...