Senators and the White House clinched a deal Thursday on bringing 12 million illegal immigrants out of the shadows and securing US borders, which could enhance President George W. Bush's legacy. The pact would provide a path to permanent residency and citizenship for illegal workers, establish a merit-based points system for future immigrants and also establish a temporary worker program. The bill, which emerged from exhaustive round-the-clock talks, and will be debated in the Senate next week, will provide 18,000 more border patrol agents, and scores of radar and camera towers on the US border with Mexico. It is aimed...