One in every 11 people born in Mexico and still alive is a U.S. resident, and about half of these immigrants crossed the border illegally, according to a comprehensive report released Tuesday. In the Pew Hispanic Center study of immigration trends, analysts estimated that in March 2004 about 10.3 million immigrants from around the world were living in the United States without legal documents to be here -- some 24 percent of them in California. About 10.6 million people born in Mexico live in the U.S. -- about 5.9 million of them illegally. "The approach has been to try and...