WASHINGTON (Reuters) - Under pressure to produce broad immigration reform legislation by the end of the month, a U.S. Senate panel on Thursday neared agreement on a proposal that would give some of the 12 million illegal aliens living in the country an opportunity to earn citizenship. Although no vote will be held until after a weeklong congressional recess, the Senate Judiciary Committee on Thursday appeared ready to back a proposal by panel member Sen. Edward Kennedy, a Massachusetts Democrat, who has worked on the issue with his Republican colleague John McCain of Arizona. The panel, which is working on...