Amid growing calls for the Guantanamo prison camp to be shut down, the Senate Judiciary Committee recommended yesterday that Congress intervene to resolve the fate of the more than 500 prisoners. In a heated hearing on Wednesday, lawmakers sparred with each other and Justice Department officials who asserted that Washington could hold prisoners for the rest of their lives if it wished. Alabama Republican Senator Jeff Sessions argued that some of the prisoners “need to be executed,” while Democrat Patrick Leahy of Vermont called the prison a “international embarrassment.”