WASHINGTON - A plan being proposed by President Bush (news - web sites) would give legal status to foreign workers, including millions already toiling in America's underground economy, removing the fear of deportation but not putting them on a fast track toward permanent U.S. residency. In a speech Wednesday at the White House, Bush will ask Congress to approve changes to immigration policy, saying they would make the country safer by giving officials a better idea of who is crossing the border, bolster the economy by fulfilling employers' needs and protect illegal workers' rights. Also, in a nod to conservatives...