President Barack Obama has signed an executive order directing the federal government to design a new strategy for hiring, promoting and keeping workers of diverse backgrounds. The three-page order released Thursday directs the head of the Office of Personnel Management, a deputy director at the Office of Management and Budget and two other agencies to develop the strategy within 90 days. Agencies then have 120 days to implement it. An Office of Personnel Management report says that in fiscal year 2010, the federal workforce was 66.2 percent white, 17.7 percent black, 8 percent Hispanic, 5.6 percent Asian/Pacific Islander, 1.8 percent...