The Decline_of_Detroit has hardly ever stopped.
http://www2.metrotimes.com/news/story.asp?id=14470
Of course, there have been a series of revitalization attempts over the decades.
http://en.wikipedia.org/wiki/Planning_and_development_in_Detroit
http://geography.about.com/od/urbaneconomicgeography/a/geography-detroit-decline.htm,
http://en.wikipedia.org/wiki/Decline_of_Detroit#1950s_job_losses,
http://theeconomiccollapseblog.com/archives/rotting-decaying-and-bankrupt-if-you-want-to-see-the-future-of-america-just-look-at-detroit,
http://en.wikipedia.org/wiki/Decline_of_Detroit#City_finances,
http://www.infowars.com/rotting-decaying-and-bankrupt-if-you-want-to-see-the-future-of-america-just-look-at-detroit
A serious crime problem remains.
http://www.cbsnews.com/8301-504083_162-57537441-504083/detroit-is-most-dangerous-city-in-america-for-fourth-year-in-a-row-forbes-report-says
Some say that not even Superman can save Detroit, because he was never real.
http://www.cbsnews.com/2300-207_162-10017195.html
However, the problems of Detroit are very real.
http://www.independent.co.uk/news/world/americas/struggling-with-urban-decay-detroit-now-has-a-mountain-of-unwanted-coke--thanks-to-antienvironmentalist-koch-brothers-8622866.html