Detroit would be the last city to install any sort of cameras (even though they have before (Hart Plaza))...this city is so corrupt, it's how politicians gain power. You can have the mayor define what deceit it by him leaving no trail, and then you can have city council point the finger at him, but then do the same thing 1 month later...a'hem: Monica Conyers.
Detroit exists because the leadership truely believes that its citizens are dumb enough, stupid enough and weak enough to accept the lowest standards of quality of life. If that's the only way the leadership can operate, then of course they don't want to babysit the public w/ cameras, because in reality and in the bottom line, as we have seen, it is the city that needs the babysitting. It's just too bad that there is no higher power above them in city administration that would enforce a normal status quo.
Semi-controlled chaos...it's the best way to describe Detroit, at will, from chosen leadership style of the administration.