Thursday, May 25, 2006 PHOTOS VIDEO Click image to enlarge STORIES •Vicente Fox: Immigration Is Biggest Challenge for Mexico, U.S.•Senate Votes to Limit Debate on Immigration Legislation•Senate Rejects Plan to Expand Citizenship for Immigrants•Senate Votes to Call English 'Common Language' of U.S.•Some Immigrants Fear Guest Worker, Residency Applications on the Rise•Mexico, Latin American Nations Slam U.S. Border Fence Proposal•Bush Continues Push for 'Fair and Effective' Immigration Laws•Report: Border Patrol Demoralized by Lack of Smuggling Prosecutions•Spanish Version of 'Star-Spangled Banner' Draws Protests•Raw Data: Comparison of House, Senate Immigration Bills WASHINGTON — Senators are betting the U.S. would benefit from giving most...