The immediate future looks a bit grim for those who work on trying to improve the lot of immigrants in the United States. Presidential candidates are trying to outdo each other in espousing harsher approaches to handling illegal immigration. There's essentially no chance of a comprehensive immigration bill moving through Congress until after the presidential election in November. "The debate in the United States is almost dangerous," said former Ambassador and former Assistant Secretary of State Princeton Lyman to an audience of employees of the U.S. Conference of Catholic Bishops Jan. 9.