U.S. Census Bureau: Detroit, Nation's Second Poorest CityPOSTED: 12:00 pm EDT August 29, 2006 UPDATED: 12:19 pm EDT August 29, 2006 The U.S. Census Bureau ranks Detroit as the county's second poorest big city. Detroit has 31.4 percent of its residents living in poverty Cleveland took the top spot. Cleveland had 32.4 percent of its 452,200 people living below the poverty level in 2005, according to the American Community Survey released Tuesday. Last year, Cleveland fell to No. 12 on the list. City leaders celebrated when the 2005 survey put the city's poverty level at 23.2 percent, down from the...