This is an interesting article from Forbes.com. (it comes with an interactive multimedia presentation)

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We have unveiled the American city that has fallen the farthest from grace in each of the seven deadly sins ( lust, gluttony, avarice, sloth, wrath, envy and pride). For each sin we stretched our imagination to find a workable proxy--murder rates for wrath, per capita billionaires for avarice--then culled the available data sources to rank the cities. Some of the results were surprising: Salt Lake City as America's Vainest City. Some were not: Detroit as America's Most Murderous.