WASHINGTON (Reuters) - Leaders of a divided federal civil-rights watchdog agency accused President Bush of deepening racial divisions, in a parting shot after years of sparring with his administration.Mary Frances Berry, chairperson of the U.S. Commission on Civil Rights, and Vice Chairperson Cruz Reynoso delivered a 166-page report to the White House harshly criticizing the administration for setting back race relations and failing to promote civil rights in any meaningful way. But the report is not an official document, because four of the eight commissioners, all of them Republican appointees, voted against adopting it and rejected the charges as politically...