DAYTON -- The Dayton Police Department is lowering its testing standards for recruits. It's a move required by the U.S. Department of Justice after it says not enough African-Americans passed the exam. Dayton is in desperate need of officers to replace dozens of retirees. The hiring process was postponed for months because the D.O.J. rejected the original scores provided by the Dayton Civil Service Board, which administers the test. Under the previous requirements, candidates had to get a 66% on part one of the exam and a 72% on part two. The D.O.J. approved new scoring policy only requires potential...